/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the MIT License. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------*/

import 'vs/css!./media/extensionActions';
import { localize } from 'vs/nls';
import { IAction, Action, Separator, SubmenuAction } from 'vs/base/common/actions';
import { Delayer, Promises } from 'vs/base/common/async';
import * as DOM from 'vs/base/browser/dom';
import { Event } from 'vs/base/common/event';
import * as json from 'vs/base/common/json';
import { IContextMenuService } from 'vs/platform/contextview/browser/contextView';
import { dispose } from 'vs/base/common/lifecycle';
import { IExtension, ExtensionState, IExtensionsWorkbenchService, VIEWLET_ID, IExtensionsViewPaneContainer, IExtensionContainer, TOGGLE_IGNORE_EXTENSION_ACTION_ID, SELECT_INSTALL_VSIX_EXTENSION_COMMAND_ID } from 'vs/workbench/contrib/extensions/common/extensions';
import { ExtensionsConfigurationInitialContent } from 'vs/workbench/contrib/extensions/common/extensionsFileTemplate';
import { IGalleryExtension, IExtensionGalleryService, INSTALL_ERROR_MALICIOUS, INSTALL_ERROR_INCOMPATIBLE, IGalleryExtensionVersion, ILocalExtension, INSTALL_ERROR_NOT_SUPPORTED, InstallOptions, InstallOperation } from 'vs/platform/extensionManagement/common/extensionManagement';
import { IWorkbenchExtensionEnablementService, EnablementState, IExtensionManagementServerService, IExtensionManagementServer, IWorkbenchExtensioManagementService, IWebExtensionsScannerService } from 'vs/workbench/services/extensionManagement/common/extensionManagement';
import { ExtensionRecommendationReason, IExtensionIgnoredRecommendationsService, IExtensionRecommendationsService } from 'vs/workbench/services/extensionRecommendations/common/extensionRecommendations';
import { areSameExtensions } from 'vs/platform/extensionManagement/common/extensionManagementUtil';
import { ExtensionType, ExtensionIdentifier, IExtensionDescription, IExtensionManifest, isLanguagePackExtension } from 'vs/platform/extensions/common/extensions';
import { IInstantiationService, ServicesAccessor } from 'vs/platform/instantiation/common/instantiation';
import { IViewletService } from 'vs/workbench/services/viewlet/browser/viewlet';
import { IFileService, IFileContent } from 'vs/platform/files/common/files';
import { IWorkspaceContextService, WorkbenchState, IWorkspaceFolder } from 'vs/platform/workspace/common/workspace';
import { IHostService } from 'vs/workbench/services/host/browser/host';
import { IExtensionService, toExtension, toExtensionDescription } from 'vs/workbench/services/extensions/common/extensions';
import { URI } from 'vs/base/common/uri';
import { CommandsRegistry, ICommandService } from 'vs/platform/commands/common/commands';
import { IConfigurationService } from 'vs/platform/configuration/common/configuration';
import { registerThemingParticipant, IColorTheme, ICssStyleCollector, ThemeIcon } from 'vs/platform/theme/common/themeService';
import { buttonBackground, buttonForeground, buttonHoverBackground, contrastBorder, registerColor, foreground } from 'vs/platform/theme/common/colorRegistry';
import { IJSONEditingService } from 'vs/workbench/services/configuration/common/jsonEditing';
import { ITextEditorSelection } from 'vs/platform/editor/common/editor';
import { ITextModelService } from 'vs/editor/common/services/resolverService';
import { IContextKeyService } from 'vs/platform/contextkey/common/contextkey';
import { MenuId, IMenuService } from 'vs/platform/actions/common/actions';
import { PICK_WORKSPACE_FOLDER_COMMAND_ID } from 'vs/workbench/browser/actions/workspaceCommands';
import { INotificationService, IPromptChoice, Severity } from 'vs/platform/notification/common/notification';
import { IOpenerService } from 'vs/platform/opener/common/opener';
import { IEditorService } from 'vs/workbench/services/editor/common/editorService';
import { IQuickPickItem, IQuickInputService, IQuickPickSeparator } from 'vs/platform/quickinput/common/quickInput';
import { CancellationToken } from 'vs/base/common/cancellation';
import { alert } from 'vs/base/browser/ui/aria/aria';
import { coalesce } from 'vs/base/common/arrays';
import { IWorkbenchThemeService, IWorkbenchTheme, IWorkbenchColorTheme, IWorkbenchFileIconTheme, IWorkbenchProductIconTheme } from 'vs/workbench/services/themes/common/workbenchThemeService';
import { ILabelService } from 'vs/platform/label/common/label';
import { prefersExecuteOnUI, prefersExecuteOnWorkspace, canExecuteOnUI, canExecuteOnWorkspace, prefersExecuteOnWeb } from 'vs/workbench/services/extensions/common/extensionsUtil';
import { ITextFileService } from 'vs/workbench/services/textfile/common/textfiles';
import { IProductService } from 'vs/platform/product/common/productService';
import { IDialogService } from 'vs/platform/dialogs/common/dialogs';
import { IProgressService, ProgressLocation } from 'vs/platform/progress/common/progress';
import { IActionViewItemOptions, ActionViewItem } from 'vs/base/browser/ui/actionbar/actionViewItems';
import { EXTENSIONS_CONFIG, IExtensionsConfigContent } from 'vs/workbench/services/extensionRecommendations/common/workspaceExtensionsConfig';
import { getErrorMessage, isPromiseCanceledError } from 'vs/base/common/errors';
import { IUserDataAutoSyncEnablementService, IUserDataSyncResourceEnablementService, SyncResource } from 'vs/platform/userDataSync/common/userDataSync';
import { ActionWithDropdownActionViewItem, IActionWithDropdownActionViewItemOptions } from 'vs/base/browser/ui/dropdown/dropdownActionViewItem';
import { IContextMenuProvider } from 'vs/base/browser/contextmenu';
import { ILogService } from 'vs/platform/log/common/log';
import * as Constants from 'vs/workbench/contrib/logs/common/logConstants';
import { infoIcon, manageExtensionIcon, syncEnabledIcon, syncIgnoredIcon, trustIcon, warningIcon } from 'vs/workbench/contrib/extensions/browser/extensionsIcons';
import { IWorkspaceTrustService } from 'vs/platform/workspace/common/workspaceTrust';

function getRelativeDateLabel(date: Date): string {
	const delta = new Date().getTime() - date.getTime();

	const year = 365 * 24 * 60 * 60 * 1000;
	if (delta > year) {
		const noOfYears = Math.floor(delta / year);
		return noOfYears > 1 ? localize('noOfYearsAgo', "{0} years ago", noOfYears) : localize('one year ago', "1 year ago");
	}

	const month = 30 * 24 * 60 * 60 * 1000;
	if (delta > month) {
		const noOfMonths = Math.floor(delta / month);
		return noOfMonths > 1 ? localize('noOfMonthsAgo', "{0} months ago", noOfMonths) : localize('one month ago', "1 month ago");
	}

	const day = 24 * 60 * 60 * 1000;
	if (delta > day) {
		const noOfDays = Math.floor(delta / day);
		return noOfDays > 1 ? localize('noOfDaysAgo', "{0} days ago", noOfDays) : localize('one day ago', "1 day ago");
	}

	const hour = 60 * 60 * 1000;
	if (delta > hour) {
		const noOfHours = Math.floor(delta / day);
		return noOfHours > 1 ? localize('noOfHoursAgo', "{0} hours ago", noOfHours) : localize('one hour ago', "1 hour ago");
	}

	if (delta > 0) {
		return localize('just now', "Just now");
	}

	return '';
}

export class PromptExtensionInstallFailureAction extends Action {

	constructor(
		private readonly extension: IExtension,
		private readonly version: string,
		private readonly installOperation: InstallOperation,
		private readonly error: Error,
		@IProductService private readonly productService: IProductService,
		@IOpenerService private readonly openerService: IOpenerService,
		@INotificationService private readonly notificationService: INotificationService,
		@IDialogService private readonly dialogService: IDialogService,
		@ICommandService private readonly commandService: ICommandService,
		@ILogService private readonly logService: ILogService,
	) {
		super('extension.promptExtensionInstallFailure');
	}

	async run(): Promise<void> {
		if (isPromiseCanceledError(this.error)) {
			return;
		}

		this.logService.error(this.error);
		const operationMessage = this.installOperation === InstallOperation.Update ? localize('update operation', "Error while updating '{0}' extension.", this.extension.displayName || this.extension.identifier.id)
			: localize('install operation', "Error while installing '{0}' extension.", this.extension.displayName || this.extension.identifier.id);

		if ([INSTALL_ERROR_INCOMPATIBLE, INSTALL_ERROR_MALICIOUS, INSTALL_ERROR_NOT_SUPPORTED].includes(this.error.name)) {
			await this.dialogService.show(Severity.Info, getErrorMessage(this.error), []);
			return;
		}

		const promptChoices: IPromptChoice[] = [];
		if (this.extension.gallery && this.productService.extensionsGallery) {
			promptChoices.push({
				label: localize('download', "Try Downloading Manually..."),
				run: () => this.openerService.open(URI.parse(`${this.productService.extensionsGallery!.serviceUrl}/publishers/${this.extension.publisher}/vsextensions/${this.extension.name}/${this.version}/vspackage`)).then(() => {
					this.notificationService.prompt(
						Severity.Info,
						localize('install vsix', 'Once downloaded, please manually install the downloaded VSIX of \'{0}\'.', this.extension.identifier.id),
						[{
							label: localize('installVSIX', "Install from VSIX..."),
							run: () => this.commandService.executeCommand(SELECT_INSTALL_VSIX_EXTENSION_COMMAND_ID)
						}]
					);
				})
			});
		}
		const checkLogsMessage = localize('check logs', "Please check the [log]({0}) for more details.", `command:${Constants.showWindowLogActionId}`);
		this.notificationService.prompt(Severity.Error, `${operationMessage} ${checkLogsMessage}`, promptChoices);
	}
}

export abstract class ExtensionAction extends Action implements IExtensionContainer {
	static readonly EXTENSION_ACTION_CLASS = 'extension-action';
	static readonly TEXT_ACTION_CLASS = `${ExtensionAction.EXTENSION_ACTION_CLASS} text`;
	static readonly LABEL_ACTION_CLASS = `${ExtensionAction.EXTENSION_ACTION_CLASS} label`;
	static readonly ICON_ACTION_CLASS = `${ExtensionAction.EXTENSION_ACTION_CLASS} icon`;
	private _extension: IExtension | null = null;
	get extension(): IExtension | null { return this._extension; }
	set extension(extension: IExtension | null) { this._extension = extension; this.update(); }
	abstract update(): void;
}

export class ActionWithDropDownAction extends ExtensionAction {

	private action: IAction | undefined;

	private _menuActions: IAction[] = [];
	get menuActions(): IAction[] { return [...this._menuActions]; }

	get extension(): IExtension | null {
		return super.extension;
	}

	set extension(extension: IExtension | null) {
		this.actions.forEach(a => a.extension = extension);
		super.extension = extension;
	}

	constructor(
		id: string, label: string,
		protected readonly actions: ExtensionAction[],
	) {
		super(id, label);
		this.update();
		this._register(Event.any(...actions.map(a => a.onDidChange))(() => this.update(true)));
		actions.forEach(a => this._register(a));
	}

	update(donotUpdateActions?: boolean): void {
		if (!donotUpdateActions) {
			this.actions.forEach(a => a.update());
		}

		const enabledActions = this.actions.filter(a => a.enabled);
		this.action = enabledActions[0];
		this._menuActions = enabledActions.slice(1);

		this.enabled = !!this.action;
		if (this.action) {
			this.label = this.action.label;
			this.tooltip = this.action.tooltip;
		}

		let clazz = (this.action || this.actions[0])?.class || '';
		clazz = clazz ? `${clazz} action-dropdown` : 'action-dropdown';
		if (this._menuActions.length === 0) {
			clazz += ' action-dropdown';
		}
		this.class = clazz;
	}

	run(): Promise<void> {
		const enabledActions = this.actions.filter(a => a.enabled);
		return enabledActions[0].run();
	}
}

export abstract class AbstractInstallAction extends ExtensionAction {

	static readonly Class = `${ExtensionAction.LABEL_ACTION_CLASS} prominent install`;

	protected _manifest: IExtensionManifest | null = null;
	set manifest(manifest: IExtensionManifest) {
		this._manifest = manifest;
		this.updateLabel();
	}

	constructor(
		id: string, label: string, cssClass: string,
		@IExtensionsWorkbenchService private readonly extensionsWorkbenchService: IExtensionsWorkbenchService,
		@IInstantiationService private readonly instantiationService: IInstantiationService,
		@IExtensionService private readonly runtimeExtensionService: IExtensionService,
		@IWorkbenchThemeService private readonly workbenchThemeService: IWorkbenchThemeService,
		@ILabelService private readonly labelService: ILabelService,
	) {
		super(id, label, cssClass, false);
		this.update();
		this._register(this.labelService.onDidChangeFormatters(() => this.updateLabel(), this));
	}

	update(): void {
		this.enabled = false;
		if (this.extension && !this.extension.isBuiltin) {
			if (this.extension.state === ExtensionState.Uninstalled && this.extensionsWorkbenchService.canInstall(this.extension)) {
				this.enabled = true;
				this.updateLabel();
			}
		}
	}

	async run(): Promise<any> {
		if (!this.extension) {
			return;
		}
		this.extensionsWorkbenchService.open(this.extension);

		alert(localize('installExtensionStart', "Installing extension {0} started. An editor is now open with more details on this extension", this.extension.displayName));

		const extension = await this.install(this.extension);

		if (extension?.local) {
			alert(localize('installExtensionComplete', "Installing extension {0} is completed.", this.extension.displayName));
			const runningExtension = await this.getRunningExtension(extension.local);
			if (runningExtension && !(runningExtension.activationEvents && runningExtension.activationEvents.some(activationEent => activationEent.startsWith('onLanguage')))) {
				let action = await SetColorThemeAction.create(this.workbenchThemeService, this.instantiationService, extension)
					|| await SetFileIconThemeAction.create(this.workbenchThemeService, this.instantiationService, extension)
					|| await SetProductIconThemeAction.create(this.workbenchThemeService, this.instantiationService, extension);
				if (action) {
					try {
						return action.run({ showCurrentTheme: true, ignoreFocusLost: true });
					} finally {
						action.dispose();
					}
				}
			}
		}

	}

	private async install(extension: IExtension): Promise<IExtension | undefined> {
		try {
			return await this.extensionsWorkbenchService.install(extension, this.getInstallOptions());
		} catch (error) {
			await this.instantiationService.createInstance(PromptExtensionInstallFailureAction, extension, extension.latestVersion, InstallOperation.Install, error).run();
			return undefined;
		}
	}

	private async getRunningExtension(extension: ILocalExtension): Promise<IExtensionDescription | null> {
		const runningExtension = await this.runtimeExtensionService.getExtension(extension.identifier.id);
		if (runningExtension) {
			return runningExtension;
		}
		if (this.runtimeExtensionService.canAddExtension(toExtensionDescription(extension))) {
			return new Promise<IExtensionDescription | null>((c, e) => {
				const disposable = this.runtimeExtensionService.onDidChangeExtensions(async () => {
					const runningExtension = await this.runtimeExtensionService.getExtension(extension.identifier.id);
					if (runningExtension) {
						disposable.dispose();
						c(runningExtension);
					}
				});
			});
		}
		return null;
	}

	protected abstract updateLabel(): void;
	protected abstract getInstallOptions(): InstallOptions;
}

export class InstallAction extends AbstractInstallAction {

	constructor(
		@IExtensionsWorkbenchService extensionsWorkbenchService: IExtensionsWorkbenchService,
		@IInstantiationService instantiationService: IInstantiationService,
		@IExtensionService runtimeExtensionService: IExtensionService,
		@IWorkbenchThemeService workbenchThemeService: IWorkbenchThemeService,
		@ILabelService labelService: ILabelService,
		@IExtensionManagementServerService private readonly extensionManagementServerService: IExtensionManagementServerService,
		@IWorkbenchExtensioManagementService private readonly workbenchExtensioManagementService: IWorkbenchExtensioManagementService,
		@IUserDataAutoSyncEnablementService protected readonly userDataAutoSyncEnablementService: IUserDataAutoSyncEnablementService,
		@IUserDataSyncResourceEnablementService protected readonly userDataSyncResourceEnablementService: IUserDataSyncResourceEnablementService,
	) {
		super(`extensions.installAndSync`, localize('install', "Install"), InstallAction.Class,
			extensionsWorkbenchService, instantiationService, runtimeExtensionService, workbenchThemeService, labelService);
		this.updateLabel();
		this._register(labelService.onDidChangeFormatters(() => this.updateLabel(), this));
		this._register(Event.any(userDataAutoSyncEnablementService.onDidChangeEnablement,
			Event.filter(userDataSyncResourceEnablementService.onDidChangeResourceEnablement, e => e[0] === SyncResource.Extensions))(() => this.update()));
	}

	protected updateLabel(): void {
		if (!this.extension) {
			return;
		}

		const isMachineScoped = this.getInstallOptions().isMachineScoped;
		this.label = isMachineScoped ? localize('install and do no sync', "Install (Do not sync)") : localize('install', "Install");

		// When remote connection exists
		if (this._manifest && this.extensionManagementServerService.remoteExtensionManagementServer) {

			const server = this.workbenchExtensioManagementService.getExtensionManagementServerToInstall(this._manifest);

			if (server === this.extensionManagementServerService.remoteExtensionManagementServer) {
				const host = this.extensionManagementServerService.remoteExtensionManagementServer.label;
				this.label = isMachineScoped
					? localize({ key: 'install in remote and do not sync', comment: ['This is the name of the action to install an extension in remote server and do not sync it. Placeholder is for the name of remote server.'] }, "Install in {0} (Do not sync)", host)
					: localize({ key: 'install in remote', comment: ['This is the name of the action to install an extension in remote server. Placeholder is for the name of remote server.'] }, "Install in {0}", host);
				return;
			}

			this.label = isMachineScoped ? localize('install locally and do not sync', "Install Locally (Do not sync)") : localize('install locally', "Install Locally");
			return;
		}
	}

	protected getInstallOptions(): InstallOptions {
		return { isMachineScoped: this.userDataAutoSyncEnablementService.isEnabled() && this.userDataSyncResourceEnablementService.isResourceEnabled(SyncResource.Extensions) };
	}

}

export class InstallAndSyncAction extends AbstractInstallAction {

	constructor(
		@IExtensionsWorkbenchService extensionsWorkbenchService: IExtensionsWorkbenchService,
		@IInstantiationService instantiationService: IInstantiationService,
		@IExtensionService runtimeExtensionService: IExtensionService,
		@IWorkbenchThemeService workbenchThemeService: IWorkbenchThemeService,
		@ILabelService labelService: ILabelService,
		@IProductService productService: IProductService,
		@IUserDataAutoSyncEnablementService private readonly userDataAutoSyncEnablementService: IUserDataAutoSyncEnablementService,
		@IUserDataSyncResourceEnablementService private readonly userDataSyncResourceEnablementService: IUserDataSyncResourceEnablementService,
	) {
		super(`extensions.installAndSync`, localize('install', "Install"), InstallAndSyncAction.Class,
			extensionsWorkbenchService, instantiationService, runtimeExtensionService, workbenchThemeService, labelService);
		this.tooltip = localize({ key: 'install everywhere tooltip', comment: ['Placeholder is the name of the product. Eg: Visual Studio Code or Visual Studio Code - Insiders'] }, "Install this extension in all your synced {0} instances", productService.nameLong);
		this._register(Event.any(userDataAutoSyncEnablementService.onDidChangeEnablement,
			Event.filter(userDataSyncResourceEnablementService.onDidChangeResourceEnablement, e => e[0] === SyncResource.Extensions))(() => this.update()));
	}


	update(): void {
		super.update();
		if (this.enabled) {
			this.enabled = this.userDataAutoSyncEnablementService.isEnabled() && this.userDataSyncResourceEnablementService.isResourceEnabled(SyncResource.Extensions);
		}
	}

	protected updateLabel(): void { }

	protected getInstallOptions(): InstallOptions {
		return { isMachineScoped: false };
	}
}

export class InstallDropdownAction extends ActionWithDropDownAction {

	set manifest(manifest: IExtensionManifest) {
		this.actions.forEach(a => (<AbstractInstallAction>a).manifest = manifest);
		this.actions.forEach(a => a.update());
		this.update();
	}

	constructor(
		@IInstantiationService instantiationService: IInstantiationService,
	) {
		super(`extensions.installActions`, '', [
			instantiationService.createInstance(InstallAndSyncAction),
			instantiationService.createInstance(InstallAction),
		]);
	}

}

export class InstallingLabelAction extends ExtensionAction {

	private static readonly LABEL = localize('installing', "Installing");
	private static readonly CLASS = `${ExtensionAction.LABEL_ACTION_CLASS} install installing`;

	constructor() {
		super('extension.installing', InstallingLabelAction.LABEL, InstallingLabelAction.CLASS, false);
	}

	update(): void {
		this.class = `${InstallingLabelAction.CLASS}${this.extension && this.extension.state === ExtensionState.Installing ? '' : ' hide'}`;
	}
}

export abstract class InstallInOtherServerAction extends ExtensionAction {

	protected static readonly INSTALL_LABEL = localize('install', "Install");
	protected static readonly INSTALLING_LABEL = localize('installing', "Installing");

	private static readonly Class = `${ExtensionAction.LABEL_ACTION_CLASS} prominent install`;
	private static readonly InstallingClass = `${ExtensionAction.LABEL_ACTION_CLASS} install installing`;

	updateWhenCounterExtensionChanges: boolean = true;

	constructor(
		id: string,
		private readonly server: IExtensionManagementServer | null,
		private readonly canInstallAnyWhere: boolean,
		@IExtensionsWorkbenchService private readonly extensionsWorkbenchService: IExtensionsWorkbenchService,
		@IExtensionManagementServerService protected readonly extensionManagementServerService: IExtensionManagementServerService,
		@IProductService private readonly productService: IProductService,
		@IConfigurationService private readonly configurationService: IConfigurationService,
	) {
		super(id, InstallInOtherServerAction.INSTALL_LABEL, InstallInOtherServerAction.Class, false);
		this.update();
	}

	update(): void {
		this.enabled = false;
		this.class = InstallInOtherServerAction.Class;

		if (this.canInstall()) {
			const extensionInOtherServer = this.extensionsWorkbenchService.installed.filter(e => areSameExtensions(e.identifier, this.extension!.identifier) && e.server === this.server)[0];
			if (extensionInOtherServer) {
				// Getting installed in other server
				if (extensionInOtherServer.state === ExtensionState.Installing && !extensionInOtherServer.local) {
					this.enabled = true;
					this.label = InstallInOtherServerAction.INSTALLING_LABEL;
					this.class = InstallInOtherServerAction.InstallingClass;
				}
			} else {
				// Not installed in other server
				this.enabled = true;
				this.label = this.getInstallLabel();
			}
		}
	}

	protected canInstall(): boolean {
		// Disable if extension is not installed or not an user extension
		if (
			!this.extension
			|| !this.server
			|| !this.extension.local
			|| this.extension.state !== ExtensionState.Installed
			|| this.extension.type !== ExtensionType.User
			|| this.extension.enablementState === EnablementState.DisabledByEnvironment
		) {
			return false;
		}

		if (isLanguagePackExtension(this.extension.local.manifest)) {
			return true;
		}

		// Prefers to run on UI
		if (this.server === this.extensionManagementServerService.localExtensionManagementServer && prefersExecuteOnUI(this.extension.local.manifest, this.productService, this.configurationService)) {
			return true;
		}

		// Prefers to run on Workspace
		if (this.server === this.extensionManagementServerService.remoteExtensionManagementServer && prefersExecuteOnWorkspace(this.extension.local.manifest, this.productService, this.configurationService)) {
			return true;
		}

		// Prefers to run on Web
		if (this.server === this.extensionManagementServerService.webExtensionManagementServer && prefersExecuteOnWeb(this.extension.local.manifest, this.productService, this.configurationService)) {
			return true;
		}

		if (this.canInstallAnyWhere) {
			// Can run on UI
			if (this.server === this.extensionManagementServerService.localExtensionManagementServer && canExecuteOnUI(this.extension.local.manifest, this.productService, this.configurationService)) {
				return true;
			}

			// Can run on Workspace
			if (this.server === this.extensionManagementServerService.remoteExtensionManagementServer && canExecuteOnWorkspace(this.extension.local.manifest, this.productService, this.configurationService)) {
				return true;
			}
		}

		return false;
	}

	async run(): Promise<void> {
		if (!this.extension) {
			return;
		}
		if (this.server) {
			this.extensionsWorkbenchService.open(this.extension);
			alert(localize('installExtensionStart', "Installing extension {0} started. An editor is now open with more details on this extension", this.extension.displayName));
			if (this.extension.gallery) {
				await this.server.extensionManagementService.installFromGallery(this.extension.gallery);
			} else {
				const vsix = await this.extension.server!.extensionManagementService.zip(this.extension.local!);
				await this.server.extensionManagementService.install(vsix);
			}
		}
	}

	protected abstract getInstallLabel(): string;
}

export class RemoteInstallAction extends InstallInOtherServerAction {

	constructor(
		canInstallAnyWhere: boolean,
		@IExtensionsWorkbenchService extensionsWorkbenchService: IExtensionsWorkbenchService,
		@IExtensionManagementServerService extensionManagementServerService: IExtensionManagementServerService,
		@IProductService productService: IProductService,
		@IConfigurationService configurationService: IConfigurationService,
	) {
		super(`extensions.remoteinstall`, extensionManagementServerService.remoteExtensionManagementServer, canInstallAnyWhere, extensionsWorkbenchService, extensionManagementServerService, productService, configurationService);
	}

	protected getInstallLabel(): string {
		return this.extensionManagementServerService.remoteExtensionManagementServer
			? localize({ key: 'install in remote', comment: ['This is the name of the action to install an extension in remote server. Placeholder is for the name of remote server.'] }, "Install in {0}", this.extensionManagementServerService.remoteExtensionManagementServer.label)
			: InstallInOtherServerAction.INSTALL_LABEL;
	}

}

export class LocalInstallAction extends InstallInOtherServerAction {

	constructor(
		@IExtensionsWorkbenchService extensionsWorkbenchService: IExtensionsWorkbenchService,
		@IExtensionManagementServerService extensionManagementServerService: IExtensionManagementServerService,
		@IProductService productService: IProductService,
		@IConfigurationService configurationService: IConfigurationService,
	) {
		super(`extensions.localinstall`, extensionManagementServerService.localExtensionManagementServer, false, extensionsWorkbenchService, extensionManagementServerService, productService, configurationService);
	}

	protected getInstallLabel(): string {
		return localize('install locally', "Install Locally");
	}

}

export class WebInstallAction extends InstallInOtherServerAction {

	constructor(
		@IExtensionsWorkbenchService extensionsWorkbenchService: IExtensionsWorkbenchService,
		@IExtensionManagementServerService extensionManagementServerService: IExtensionManagementServerService,
		@IProductService productService: IProductService,
		@IConfigurationService configurationService: IConfigurationService,
		@IWebExtensionsScannerService private readonly webExtensionsScannerService: IWebExtensionsScannerService,
	) {
		super(`extensions.webInstall`, extensionManagementServerService.webExtensionManagementServer, false, extensionsWorkbenchService, extensionManagementServerService, productService, configurationService);
	}

	protected getInstallLabel(): string {
		return localize('install browser', "Install in Browser");
	}

	protected canInstall(): boolean {
		if (super.canInstall()) {
			return !!this.extension?.gallery && this.webExtensionsScannerService.canAddExtension(this.extension.gallery);
		}
		return false;
	}

}

export class UninstallAction extends ExtensionAction {

	static readonly UninstallLabel = localize('uninstallAction', "Uninstall");
	private static readonly UninstallingLabel = localize('Uninstalling', "Uninstalling");

	private static readonly UninstallClass = `${ExtensionAction.LABEL_ACTION_CLASS} uninstall`;
	private static readonly UnInstallingClass = `${ExtensionAction.LABEL_ACTION_CLASS} uninstall uninstalling`;

	constructor(
		@IExtensionsWorkbenchService private extensionsWorkbenchService: IExtensionsWorkbenchService
	) {
		super('extensions.uninstall', UninstallAction.UninstallLabel, UninstallAction.UninstallClass, false);
		this.update();
	}

	update(): void {
		if (!this.extension) {
			this.enabled = false;
			return;
		}

		const state = this.extension.state;

		if (state === ExtensionState.Uninstalling) {
			this.label = UninstallAction.UninstallingLabel;
			this.class = UninstallAction.UnInstallingClass;
			this.enabled = false;
			return;
		}

		this.label = UninstallAction.UninstallLabel;
		this.class = UninstallAction.UninstallClass;
		this.tooltip = UninstallAction.UninstallLabel;

		if (state !== ExtensionState.Installed) {
			this.enabled = false;
			return;
		}

		if (this.extension.isBuiltin) {
			this.enabled = false;
			return;
		}

		this.enabled = true;
	}

	async run(): Promise<any> {
		if (!this.extension) {
			return;
		}
		alert(localize('uninstallExtensionStart', "Uninstalling extension {0} started.", this.extension.displayName));

		return this.extensionsWorkbenchService.uninstall(this.extension).then(() => {
			alert(localize('uninstallExtensionComplete', "Please reload Visual Studio Code to complete the uninstallation of the extension {0}.", this.extension!.displayName));
		});
	}
}

export class UpdateAction extends ExtensionAction {

	private static readonly EnabledClass = `${ExtensionAction.LABEL_ACTION_CLASS} prominent update`;
	private static readonly DisabledClass = `${UpdateAction.EnabledClass} disabled`;

	constructor(
		@IExtensionsWorkbenchService private readonly extensionsWorkbenchService: IExtensionsWorkbenchService,
		@IInstantiationService private readonly instantiationService: IInstantiationService,
	) {
		super(`extensions.update`, '', UpdateAction.DisabledClass, false);
		this.update();
	}

	update(): void {
		if (!this.extension) {
			this.enabled = false;
			this.class = UpdateAction.DisabledClass;
			this.label = this.getUpdateLabel();
			return;
		}

		if (this.extension.type !== ExtensionType.User) {
			this.enabled = false;
			this.class = UpdateAction.DisabledClass;
			this.label = this.getUpdateLabel();
			return;
		}

		const canInstall = this.extensionsWorkbenchService.canInstall(this.extension);
		const isInstalled = this.extension.state === ExtensionState.Installed;

		this.enabled = canInstall && isInstalled && this.extension.outdated;
		this.class = this.enabled ? UpdateAction.EnabledClass : UpdateAction.DisabledClass;
		this.label = this.extension.outdated ? this.getUpdateLabel(this.extension.latestVersion) : this.getUpdateLabel();
	}

	async run(): Promise<any> {
		if (!this.extension) {
			return;
		}
		alert(localize('updateExtensionStart', "Updating extension {0} to version {1} started.", this.extension.displayName, this.extension.latestVersion));
		return this.install(this.extension);
	}

	private async install(extension: IExtension): Promise<void> {
		try {
			await this.extensionsWorkbenchService.install(extension);
			alert(localize('updateExtensionComplete', "Updating extension {0} to version {1} completed.", extension.displayName, extension.latestVersion));
		} catch (err) {
			this.instantiationService.createInstance(PromptExtensionInstallFailureAction, extension, extension.latestVersion, InstallOperation.Update, err).run();
		}
	}

	private getUpdateLabel(version?: string): string {
		return version ? localize('updateTo', "Update to {0}", version) : localize('updateAction', "Update");
	}
}

export interface IExtensionActionViewItemOptions extends IActionViewItemOptions {
	tabOnlyOnFocus?: boolean;
}

export class ExtensionActionViewItem extends ActionViewItem {

	constructor(context: any, action: IAction, options: IExtensionActionViewItemOptions = {}) {
		super(context, action, options);
	}

	updateEnabled(): void {
		super.updateEnabled();

		if (this.label && (<IExtensionActionViewItemOptions>this.options).tabOnlyOnFocus && this.getAction().enabled && !this._hasFocus) {
			DOM.removeTabIndexAndUpdateFocus(this.label);
		}
	}

	private _hasFocus: boolean = false;
	setFocus(value: boolean): void {
		if (!(<IExtensionActionViewItemOptions>this.options).tabOnlyOnFocus || this._hasFocus === value) {
			return;
		}
		this._hasFocus = value;
		if (this.label && this.getAction().enabled) {
			if (this._hasFocus) {
				this.label.tabIndex = 0;
			} else {
				DOM.removeTabIndexAndUpdateFocus(this.label);
			}
		}
	}
}

export class ExtensionActionWithDropdownActionViewItem extends ActionWithDropdownActionViewItem {

	constructor(
		action: ActionWithDropDownAction,
		options: IExtensionActionViewItemOptions & IActionWithDropdownActionViewItemOptions,
		contextMenuProvider: IContextMenuProvider
	) {
		super(null, action, options, contextMenuProvider);
	}

	render(container: HTMLElement): void {
		super.render(container);
		this.updateClass();
	}

	updateClass(): void {
		super.updateClass();
		if (this.element && this.dropdownMenuActionViewItem && this.dropdownMenuActionViewItem.element) {
			this.element.classList.toggle('empty', (<ActionWithDropDownAction>this._action).menuActions.length === 0);
			this.dropdownMenuActionViewItem.element.classList.toggle('hide', (<ActionWithDropDownAction>this._action).menuActions.length === 0);
		}
	}

	updateEnabled(): void {
		super.updateEnabled();

		if (this.label && (<IExtensionActionViewItemOptions>this.options).tabOnlyOnFocus && this.getAction().enabled && !this._hasFocus) {
			DOM.removeTabIndexAndUpdateFocus(this.label);
		}
	}

	private _hasFocus: boolean = false;
	setFocus(value: boolean): void {
		if (!(<IExtensionActionViewItemOptions>this.options).tabOnlyOnFocus || this._hasFocus === value) {
			return;
		}
		this._hasFocus = value;
		if (this.label && this.getAction().enabled) {
			if (this._hasFocus) {
				this.label.tabIndex = 0;
			} else {
				DOM.removeTabIndexAndUpdateFocus(this.label);
			}
		}
	}

}

export abstract class ExtensionDropDownAction extends ExtensionAction {

	constructor(
		id: string,
		label: string,
		cssClass: string,
		enabled: boolean,
		private readonly tabOnlyOnFocus: boolean,
		@IInstantiationService protected instantiationService: IInstantiationService
	) {
		super(id, label, cssClass, enabled);
	}

	private _actionViewItem: DropDownMenuActionViewItem | null = null;
	createActionViewItem(): DropDownMenuActionViewItem {
		this._actionViewItem = this.instantiationService.createInstance(DropDownMenuActionViewItem, this, this.tabOnlyOnFocus);
		return this._actionViewItem;
	}

	public run({ actionGroups, disposeActionsOnHide }: { actionGroups: IAction[][], disposeActionsOnHide: boolean }): Promise<any> {
		if (this._actionViewItem) {
			this._actionViewItem.showMenu(actionGroups, disposeActionsOnHide);
		}
		return Promise.resolve();
	}
}

export class DropDownMenuActionViewItem extends ExtensionActionViewItem {

	constructor(action: ExtensionDropDownAction,
		tabOnlyOnFocus: boolean,
		@IContextMenuService private readonly contextMenuService: IContextMenuService
	) {
		super(null, action, { icon: true, label: true, tabOnlyOnFocus });
	}

	public showMenu(menuActionGroups: IAction[][], disposeActionsOnHide: boolean): void {
		if (this.element) {
			const actions = this.getActions(menuActionGroups);
			let elementPosition = DOM.getDomNodePagePosition(this.element);
			const anchor = { x: elementPosition.left, y: elementPosition.top + elementPosition.height + 10 };
			this.contextMenuService.showContextMenu({
				getAnchor: () => anchor,
				getActions: () => actions,
				actionRunner: this.actionRunner,
				onHide: () => { if (disposeActionsOnHide) { dispose(actions); } }
			});
		}
	}

	private getActions(menuActionGroups: IAction[][]): IAction[] {
		let actions: IAction[] = [];
		for (const menuActions of menuActionGroups) {
			actions = [...actions, ...menuActions, new Separator()];
		}
		return actions.length ? actions.slice(0, actions.length - 1) : actions;
	}
}

export function getContextMenuActions(extension: IExtension | undefined | null, inExtensionEditor: boolean, instantiationService: IInstantiationService): IAction[][] {
	return instantiationService.invokeFunction(accessor => {
		const scopedContextKeyService = accessor.get(IContextKeyService).createScoped();
		const menuService = accessor.get(IMenuService);
		const extensionRecommendationsService = accessor.get(IExtensionRecommendationsService);
		const extensionIgnoredRecommendationsService = accessor.get(IExtensionIgnoredRecommendationsService);
		if (extension) {
			scopedContextKeyService.createKey<string>('extension', extension.identifier.id);
			scopedContextKeyService.createKey<boolean>('isBuiltinExtension', extension.isBuiltin);
			scopedContextKeyService.createKey<boolean>('extensionHasConfiguration', extension.local && !!extension.local.manifest.contributes && !!extension.local.manifest.contributes.configuration);
			scopedContextKeyService.createKey<boolean>('isExtensionRecommended', !!extensionRecommendationsService.getAllRecommendationsWithReason()[extension.identifier.id.toLowerCase()]);
			scopedContextKeyService.createKey<boolean>('isExtensionWorkspaceRecommended', extensionRecommendationsService.getAllRecommendationsWithReason()[extension.identifier.id.toLowerCase()]?.reasonId === ExtensionRecommendationReason.Workspace);
			scopedContextKeyService.createKey<boolean>('isUserIgnoredRecommendation', extensionIgnoredRecommendationsService.globalIgnoredRecommendations.some(e => e === extension.identifier.id.toLowerCase()));
			scopedContextKeyService.createKey<boolean>('inExtensionEditor', inExtensionEditor);
			if (extension.state === ExtensionState.Installed) {
				scopedContextKeyService.createKey<string>('extensionStatus', 'installed');
			}
		}

		const groups: IAction[][] = [];
		const menu = menuService.createMenu(MenuId.ExtensionContext, scopedContextKeyService);
		menu.getActions({ shouldForwardArgs: true }).forEach(([, actions]) => groups.push(actions.map(action => {
			if (action instanceof SubmenuAction) {
				return action;
			}
			return instantiationService.createInstance(MenuItemExtensionAction, action);
		})));
		menu.dispose();
		scopedContextKeyService.dispose();

		return groups;
	});
}

export class ManageExtensionAction extends ExtensionDropDownAction {

	static readonly ID = 'extensions.manage';

	private static readonly Class = `${ExtensionAction.ICON_ACTION_CLASS} manage ` + ThemeIcon.asClassName(manageExtensionIcon);
	private static readonly HideManageExtensionClass = `${ManageExtensionAction.Class} hide`;

	constructor(
		@IInstantiationService instantiationService: IInstantiationService,
		@IExtensionService private readonly extensionService: IExtensionService,
		@IWorkbenchThemeService private readonly workbenchThemeService: IWorkbenchThemeService,
	) {

		super(ManageExtensionAction.ID, '', '', true, true, instantiationService);

		this.tooltip = localize('manage', "Manage");

		this.update();
	}

	async getActionGroups(runningExtensions: IExtensionDescription[]): Promise<IAction[][]> {
		const groups: IAction[][] = [];
		if (this.extension) {
			const actions = await Promise.all([
				SetColorThemeAction.create(this.workbenchThemeService, this.instantiationService, this.extension),
				SetFileIconThemeAction.create(this.workbenchThemeService, this.instantiationService, this.extension),
				SetProductIconThemeAction.create(this.workbenchThemeService, this.instantiationService, this.extension)
			]);

			const themesGroup: ExtensionAction[] = [];
			for (let action of actions) {
				if (action) {
					themesGroup.push(action);
				}
			}
			if (themesGroup.length) {
				groups.push(themesGroup);
			}
		}
		groups.push([
			this.instantiationService.createInstance(EnableGloballyAction),
			this.instantiationService.createInstance(EnableForWorkspaceAction)
		]);
		groups.push([
			this.instantiationService.createInstance(DisableGloballyAction, runningExtensions),
			this.instantiationService.createInstance(DisableForWorkspaceAction, runningExtensions)
		]);
		groups.push([
			this.instantiationService.createInstance(UninstallAction),
			this.instantiationService.createInstance(InstallAnotherVersionAction)
		]);

		getContextMenuActions(this.extension, false, this.instantiationService).forEach(actions => groups.push(actions));

		groups.forEach(group => group.forEach(extensionAction => {
			if (extensionAction instanceof ExtensionAction) {
				extensionAction.extension = this.extension;
			}
		}));

		return groups;
	}

	async run(): Promise<any> {
		const runtimeExtensions = await this.extensionService.getExtensions();
		return super.run({ actionGroups: await this.getActionGroups(runtimeExtensions), disposeActionsOnHide: true });
	}

	update(): void {
		this.class = ManageExtensionAction.HideManageExtensionClass;
		this.enabled = false;
		if (this.extension) {
			const state = this.extension.state;
			this.enabled = state === ExtensionState.Installed;
			this.class = this.enabled || state === ExtensionState.Uninstalling ? ManageExtensionAction.Class : ManageExtensionAction.HideManageExtensionClass;
			this.tooltip = state === ExtensionState.Uninstalling ? localize('ManageExtensionAction.uninstallingTooltip', "Uninstalling") : '';
		}
	}
}

export class ExtensionEditorManageExtensionAction extends ExtensionDropDownAction {

	constructor(
		@IInstantiationService instantiationService: IInstantiationService
	) {
		super('extensionEditor.manageExtension', '', `${ExtensionAction.ICON_ACTION_CLASS} manage ${ThemeIcon.asClassName(manageExtensionIcon)}`, true, true, instantiationService);
		this.tooltip = localize('manage', "Manage");
	}

	update(): void { }

	run(): Promise<any> {
		const actionGroups: IAction[][] = [];
		getContextMenuActions(this.extension, true, this.instantiationService).forEach(actions => actionGroups.push(actions));
		actionGroups.forEach(group => group.forEach(extensionAction => {
			if (extensionAction instanceof ExtensionAction) {
				extensionAction.extension = this.extension;
			}
		}));
		return super.run({ actionGroups, disposeActionsOnHide: true });
	}

}

export class MenuItemExtensionAction extends ExtensionAction {

	constructor(
		private readonly action: IAction,
		@IExtensionsWorkbenchService private readonly extensionsWorkbenchService: IExtensionsWorkbenchService,
	) {
		super(action.id, action.label);
	}

	update() {
		if (!this.extension) {
			return;
		}
		if (this.action.id === TOGGLE_IGNORE_EXTENSION_ACTION_ID) {
			this.checked = !this.extensionsWorkbenchService.isExtensionIgnoredToSync(this.extension);
		}
	}

	async run(): Promise<void> {
		if (this.extension) {
			return this.action.run(this.extension.identifier.id);
		}
	}
}

export class InstallAnotherVersionAction extends ExtensionAction {

	static readonly ID = 'workbench.extensions.action.install.anotherVersion';
	static readonly LABEL = localize('install another version', "Install Another Version...");

	constructor(
		@IExtensionsWorkbenchService private readonly extensionsWorkbenchService: IExtensionsWorkbenchService,
		@IExtensionGalleryService private readonly extensionGalleryService: IExtensionGalleryService,
		@IQuickInputService private readonly quickInputService: IQuickInputService,
		@IInstantiationService private readonly instantiationService: IInstantiationService,
	) {
		super(InstallAnotherVersionAction.ID, InstallAnotherVersionAction.LABEL, ExtensionAction.LABEL_ACTION_CLASS);
		this.update();
	}

	update(): void {
		this.enabled = !!this.extension && !this.extension.isBuiltin && !!this.extension.gallery && this.extension.state === ExtensionState.Installed;
	}

	run(): Promise<any> {
		if (!this.enabled) {
			return Promise.resolve();
		}
		return this.quickInputService.pick(this.getVersionEntries(), { placeHolder: localize('selectVersion', "Select Version to Install"), matchOnDetail: true })
			.then(async pick => {
				if (pick) {
					if (this.extension!.version === pick.id) {
						return Promise.resolve();
					}
					try {
						if (pick.latest) {
							await this.extensionsWorkbenchService.install(this.extension!);
						} else {
							await this.extensionsWorkbenchService.installVersion(this.extension!, pick.id);
						}
					} catch (error) {
						this.instantiationService.createInstance(PromptExtensionInstallFailureAction, this.extension!, pick.latest ? this.extension!.latestVersion : pick.id, InstallOperation.Install, error).run();
					}
				}
				return null;
			});
	}

	private getVersionEntries(): Promise<(IQuickPickItem & { latest: boolean, id: string })[]> {
		return this.extensionGalleryService.getAllVersions(this.extension!.gallery!, true)
			.then(allVersions => allVersions.map((v, i) => ({ id: v.version, label: v.version, description: `${getRelativeDateLabel(new Date(Date.parse(v.date)))}${v.version === this.extension!.version ? ` (${localize('current', "Current")})` : ''}`, latest: i === 0 })));
	}
}

export class EnableForWorkspaceAction extends ExtensionAction {

	static readonly ID = 'extensions.enableForWorkspace';
	static readonly LABEL = localize('enableForWorkspaceAction', "Enable (Workspace)");

	constructor(
		@IExtensionsWorkbenchService private readonly extensionsWorkbenchService: IExtensionsWorkbenchService,
		@IWorkbenchExtensionEnablementService private readonly extensionEnablementService: IWorkbenchExtensionEnablementService
	) {
		super(EnableForWorkspaceAction.ID, EnableForWorkspaceAction.LABEL, ExtensionAction.LABEL_ACTION_CLASS);
		this.tooltip = localize('enableForWorkspaceActionToolTip', "Enable this extension only in this workspace");
		this.update();
	}

	update(): void {
		this.enabled = false;
		if (this.extension && this.extension.local) {
			this.enabled = this.extension.state === ExtensionState.Installed
				&& !this.extensionEnablementService.isEnabled(this.extension.local)
				&& this.extensionEnablementService.canChangeWorkspaceEnablement(this.extension.local);
		}
	}

	async run(): Promise<any> {
		if (!this.extension) {
			return;
		}
		return this.extensionsWorkbenchService.setEnablement(this.extension, EnablementState.EnabledWorkspace);
	}
}

export class EnableGloballyAction extends ExtensionAction {

	static readonly ID = 'extensions.enableGlobally';
	static readonly LABEL = localize('enableGloballyAction', "Enable");

	constructor(
		@IExtensionsWorkbenchService private readonly extensionsWorkbenchService: IExtensionsWorkbenchService,
		@IWorkbenchExtensionEnablementService private readonly extensionEnablementService: IWorkbenchExtensionEnablementService
	) {
		super(EnableGloballyAction.ID, EnableGloballyAction.LABEL, ExtensionAction.LABEL_ACTION_CLASS);
		this.tooltip = localize('enableGloballyActionToolTip', "Enable this extension");
		this.update();
	}

	update(): void {
		this.enabled = false;
		if (this.extension && this.extension.local) {
			this.enabled = this.extension.state === ExtensionState.Installed
				&& this.extensionEnablementService.isDisabledGlobally(this.extension.local)
				&& this.extensionEnablementService.canChangeEnablement(this.extension.local);
		}
	}

	async run(): Promise<any> {
		if (!this.extension) {
			return;
		}
		return this.extensionsWorkbenchService.setEnablement(this.extension, EnablementState.EnabledGlobally);
	}
}

export class DisableForWorkspaceAction extends ExtensionAction {

	static readonly ID = 'extensions.disableForWorkspace';
	static readonly LABEL = localize('disableForWorkspaceAction', "Disable (Workspace)");

	constructor(private _runningExtensions: IExtensionDescription[],
		@IWorkspaceContextService private readonly workspaceContextService: IWorkspaceContextService,
		@IExtensionsWorkbenchService private readonly extensionsWorkbenchService: IExtensionsWorkbenchService,
		@IWorkbenchExtensionEnablementService private readonly extensionEnablementService: IWorkbenchExtensionEnablementService
	) {
		super(DisableForWorkspaceAction.ID, DisableForWorkspaceAction.LABEL, ExtensionAction.LABEL_ACTION_CLASS);
		this.tooltip = localize('disableForWorkspaceActionToolTip', "Disable this extension only in this workspace");
		this.update();
	}

	set runningExtensions(runningExtensions: IExtensionDescription[]) {
		this._runningExtensions = runningExtensions;
		this.update();
	}

	update(): void {
		this.enabled = false;
		if (this.extension && this.extension.local && this._runningExtensions.some(e => areSameExtensions({ id: e.identifier.value, uuid: e.uuid }, this.extension!.identifier) && this.workspaceContextService.getWorkbenchState() !== WorkbenchState.EMPTY)) {
			this.enabled = this.extension.state === ExtensionState.Installed
				&& (this.extension.enablementState === EnablementState.EnabledGlobally || this.extension.enablementState === EnablementState.EnabledWorkspace)
				&& this.extensionEnablementService.canChangeWorkspaceEnablement(this.extension.local);
		}
	}

	async run(): Promise<any> {
		if (!this.extension) {
			return;
		}
		return this.extensionsWorkbenchService.setEnablement(this.extension, EnablementState.DisabledWorkspace);
	}
}

export class DisableGloballyAction extends ExtensionAction {

	static readonly ID = 'extensions.disableGlobally';
	static readonly LABEL = localize('disableGloballyAction', "Disable");

	constructor(
		private _runningExtensions: IExtensionDescription[],
		@IExtensionsWorkbenchService private readonly extensionsWorkbenchService: IExtensionsWorkbenchService,
		@IWorkbenchExtensionEnablementService private readonly extensionEnablementService: IWorkbenchExtensionEnablementService
	) {
		super(DisableGloballyAction.ID, DisableGloballyAction.LABEL, ExtensionAction.LABEL_ACTION_CLASS);
		this.tooltip = localize('disableGloballyActionToolTip', "Disable this extension");
		this.update();
	}

	set runningExtensions(runningExtensions: IExtensionDescription[]) {
		this._runningExtensions = runningExtensions;
		this.update();
	}

	update(): void {
		this.enabled = false;
		if (this.extension && this.extension.local && this._runningExtensions.some(e => areSameExtensions({ id: e.identifier.value, uuid: e.uuid }, this.extension!.identifier))) {
			this.enabled = this.extension.state === ExtensionState.Installed
				&& (this.extension.enablementState === EnablementState.EnabledGlobally || this.extension.enablementState === EnablementState.EnabledWorkspace)
				&& this.extensionEnablementService.canChangeEnablement(this.extension.local);
		}
	}

	async run(): Promise<any> {
		if (!this.extension) {
			return;
		}
		return this.extensionsWorkbenchService.setEnablement(this.extension, EnablementState.DisabledGlobally);
	}
}

export class EnableDropDownAction extends ActionWithDropDownAction {

	constructor(
		@IInstantiationService instantiationService: IInstantiationService
	) {
		super('extensions.enable', localize('enableAction', "Enable"), [
			instantiationService.createInstance(EnableGloballyAction),
			instantiationService.createInstance(EnableForWorkspaceAction)
		]);
	}
}

export class DisableDropDownAction extends ActionWithDropDownAction {

	constructor(
		@IExtensionService extensionService: IExtensionService,
		@IInstantiationService instantiationService: IInstantiationService
	) {
		const actions = [
			instantiationService.createInstance(DisableGloballyAction, []),
			instantiationService.createInstance(DisableForWorkspaceAction, [])
		];
		super('extensions.disable', localize('disableAction', "Disable"), actions);

		const updateRunningExtensions = async () => {
			const runningExtensions = await extensionService.getExtensions();
			actions.forEach(a => a.runningExtensions = runningExtensions);
		};
		updateRunningExtensions();
		this._register(extensionService.onDidChangeExtensions(() => updateRunningExtensions()));
	}

}

export class ReloadAction extends ExtensionAction {

	private static readonly EnabledClass = `${ExtensionAction.LABEL_ACTION_CLASS} reload`;
	private static readonly DisabledClass = `${ReloadAction.EnabledClass} disabled`;

	updateWhenCounterExtensionChanges: boolean = true;
	private _runningExtensions: IExtensionDescription[] | null = null;

	constructor(
		@IExtensionsWorkbenchService private readonly extensionsWorkbenchService: IExtensionsWorkbenchService,
		@IHostService private readonly hostService: IHostService,
		@IExtensionService private readonly extensionService: IExtensionService,
		@IWorkbenchExtensionEnablementService private readonly extensionEnablementService: IWorkbenchExtensionEnablementService,
		@IExtensionManagementServerService private readonly extensionManagementServerService: IExtensionManagementServerService,
		@IProductService private readonly productService: IProductService,
		@IConfigurationService private readonly configurationService: IConfigurationService,
	) {
		super('extensions.reload', localize('reloadAction', "Reload"), ReloadAction.DisabledClass, false);
		this._register(this.extensionService.onDidChangeExtensions(this.updateRunningExtensions, this));
		this.updateRunningExtensions();
	}

	private updateRunningExtensions(): void {
		this.extensionService.getExtensions().then(runningExtensions => { this._runningExtensions = runningExtensions; this.update(); });
	}

	update(): void {
		this.enabled = false;
		this.tooltip = '';
		if (!this.extension || !this._runningExtensions) {
			return;
		}
		const state = this.extension.state;
		if (state === ExtensionState.Installing || state === ExtensionState.Uninstalling) {
			return;
		}
		if (this.extension.local && this.extension.local.manifest && this.extension.local.manifest.contributes && this.extension.local.manifest.contributes.localizations && this.extension.local.manifest.contributes.localizations.length > 0) {
			return;
		}
		this.computeReloadState();
		this.class = this.enabled ? ReloadAction.EnabledClass : ReloadAction.DisabledClass;
	}

	private computeReloadState(): void {
		if (!this._runningExtensions || !this.extension) {
			return;
		}

		const isUninstalled = this.extension.state === ExtensionState.Uninstalled;
		const runningExtension = this._runningExtensions.find(e => areSameExtensions({ id: e.identifier.value, uuid: e.uuid }, this.extension!.identifier));

		if (isUninstalled) {
			const canRemoveRunningExtension = runningExtension && this.extensionService.canRemoveExtension(runningExtension);
			const isSameExtensionRunning = runningExtension && (!this.extension.server || this.extension.server === this.extensionManagementServerService.getExtensionManagementServer(toExtension(runningExtension)));
			if (!canRemoveRunningExtension && isSameExtensionRunning) {
				this.enabled = true;
				this.label = localize('reloadRequired', "Reload Required");
				this.tooltip = localize('postUninstallTooltip', "Please reload Visual Studio Code to complete the uninstallation of this extension.");
				alert(localize('uninstallExtensionComplete', "Please reload Visual Studio Code to complete the uninstallation of the extension {0}.", this.extension.displayName));
			}
			return;
		}
		if (this.extension.local) {
			const isSameExtensionRunning = runningExtension && this.extension.server === this.extensionManagementServerService.getExtensionManagementServer(toExtension(runningExtension));
			const isEnabled = this.extensionEnablementService.isEnabled(this.extension.local);

			// Extension is running
			if (runningExtension) {
				if (isEnabled) {
					// No Reload is required if extension can run without reload
					if (this.extensionService.canAddExtension(toExtensionDescription(this.extension.local))) {
						return;
					}
					const runningExtensionServer = this.extensionManagementServerService.getExtensionManagementServer(toExtension(runningExtension));

					if (isSameExtensionRunning) {
						// Different version of same extension is running. Requires reload to run the current version
						if (this.extension.version !== runningExtension.version) {
							this.enabled = true;
							this.label = localize('reloadRequired', "Reload Required");
							this.tooltip = localize('postUpdateTooltip', "Please reload Visual Studio Code to enable the updated extension.");
							return;
						}

						const extensionInOtherServer = this.extensionsWorkbenchService.installed.filter(e => areSameExtensions(e.identifier, this.extension!.identifier) && e.server !== this.extension!.server)[0];
						if (extensionInOtherServer) {
							// This extension prefers to run on UI/Local side but is running in remote
							if (runningExtensionServer === this.extensionManagementServerService.remoteExtensionManagementServer && prefersExecuteOnUI(this.extension.local!.manifest, this.productService, this.configurationService)) {
								this.enabled = true;
								this.label = localize('reloadRequired', "Reload Required");
								this.tooltip = localize('enable locally', "Please reload Visual Studio Code to enable this extension locally.");
								return;
							}

							// This extension prefers to run on Workspace/Remote side but is running in local
							if (runningExtensionServer === this.extensionManagementServerService.localExtensionManagementServer && prefersExecuteOnWorkspace(this.extension.local!.manifest, this.productService, this.configurationService)) {
								this.enabled = true;
								this.label = localize('reloadRequired', "Reload Required");
								this.tooltip = localize('enable remote', "Please reload Visual Studio Code to enable this extension in {0}.", this.extensionManagementServerService.remoteExtensionManagementServer?.label);
								return;
							}
						}

					} else {

						if (this.extension.server === this.extensionManagementServerService.localExtensionManagementServer && runningExtensionServer === this.extensionManagementServerService.remoteExtensionManagementServer) {
							// This extension prefers to run on UI/Local side but is running in remote
							if (prefersExecuteOnUI(this.extension.local!.manifest, this.productService, this.configurationService)) {
								this.enabled = true;
								this.label = localize('reloadRequired', "Reload Required");
								this.tooltip = localize('postEnableTooltip', "Please reload Visual Studio Code to enable this extension.");
							}
						}
						if (this.extension.server === this.extensionManagementServerService.remoteExtensionManagementServer && runningExtensionServer === this.extensionManagementServerService.localExtensionManagementServer) {
							// This extension prefers to run on Workspace/Remote side but is running in local
							if (prefersExecuteOnWorkspace(this.extension.local!.manifest, this.productService, this.configurationService)) {
								this.enabled = true;
								this.label = localize('reloadRequired', "Reload Required");
								this.tooltip = localize('postEnableTooltip', "Please reload Visual Studio Code to enable this extension.");
							}
						}
					}
					return;
				} else {
					if (isSameExtensionRunning) {
						this.enabled = true;
						this.label = localize('reloadRequired', "Reload Required");
						this.tooltip = localize('postDisableTooltip', "Please reload Visual Studio Code to disable this extension.");
					}
				}
				return;
			}

			// Extension is not running
			else {
				if (isEnabled && !this.extensionService.canAddExtension(toExtensionDescription(this.extension.local))) {
					this.enabled = true;
					this.label = localize('reloadRequired', "Reload Required");
					this.tooltip = localize('postEnableTooltip', "Please reload Visual Studio Code to enable this extension.");
					return;
				}

				const otherServer = this.extension.server ? this.extension.server === this.extensionManagementServerService.localExtensionManagementServer ? this.extensionManagementServerService.remoteExtensionManagementServer : this.extensionManagementServerService.localExtensionManagementServer : null;
				if (otherServer && this.extension.enablementState === EnablementState.DisabledByExtensionKind) {
					const extensionInOtherServer = this.extensionsWorkbenchService.local.filter(e => areSameExtensions(e.identifier, this.extension!.identifier) && e.server === otherServer)[0];
					// Same extension in other server exists and
					if (extensionInOtherServer && extensionInOtherServer.local && this.extensionEnablementService.isEnabled(extensionInOtherServer.local)) {
						this.enabled = true;
						this.label = localize('reloadRequired', "Reload Required");
						this.tooltip = localize('postEnableTooltip', "Please reload Visual Studio Code to enable this extension.");
						alert(localize('installExtensionCompletedAndReloadRequired', "Installing extension {0} is completed. Please reload Visual Studio Code to enable it.", this.extension.displayName));
						return;
					}
				}
			}
		}
	}

	run(): Promise<any> {
		return Promise.resolve(this.hostService.reload());
	}
}

function isThemeFromExtension(theme: IWorkbenchTheme, extension: IExtension | undefined | null): boolean {
	return !!(extension && theme.extensionData && ExtensionIdentifier.equals(theme.extensionData.extensionId, extension.identifier.id));
}

function getQuickPickEntries(themes: IWorkbenchTheme[], currentTheme: IWorkbenchTheme, extension: IExtension | null | undefined, showCurrentTheme: boolean): (IQuickPickItem | IQuickPickSeparator)[] {
	const picks: (IQuickPickItem | IQuickPickSeparator)[] = [];
	for (const theme of themes) {
		if (isThemeFromExtension(theme, extension) && !(showCurrentTheme && theme === currentTheme)) {
			picks.push({ label: theme.label, id: theme.id });
		}
	}
	if (showCurrentTheme) {
		picks.push(<IQuickPickSeparator>{ type: 'separator', label: localize('current', "Current") });
		picks.push(<IQuickPickItem>{ label: currentTheme.label, id: currentTheme.id });
	}
	return picks;
}


export class SetColorThemeAction extends ExtensionAction {

	private static readonly EnabledClass = `${ExtensionAction.LABEL_ACTION_CLASS} theme`;
	private static readonly DisabledClass = `${SetColorThemeAction.EnabledClass} disabled`;

	static async create(workbenchThemeService: IWorkbenchThemeService, instantiationService: IInstantiationService, extension: IExtension): Promise<SetColorThemeAction | undefined> {
		const themes = await workbenchThemeService.getColorThemes();
		if (themes.some(th => isThemeFromExtension(th, extension))) {
			const action = instantiationService.createInstance(SetColorThemeAction, themes);
			action.extension = extension;
			return action;
		}
		return undefined;
	}

	constructor(
		private colorThemes: IWorkbenchColorTheme[],
		@IExtensionService extensionService: IExtensionService,
		@IWorkbenchThemeService private readonly workbenchThemeService: IWorkbenchThemeService,
		@IQuickInputService private readonly quickInputService: IQuickInputService,
	) {
		super(`extensions.colorTheme`, localize('color theme', "Set Color Theme"), SetColorThemeAction.DisabledClass, false);
		this._register(Event.any<any>(extensionService.onDidChangeExtensions, workbenchThemeService.onDidColorThemeChange)(() => this.update(), this));
		this.update();
	}

	update(): void {
		this.enabled = !!this.extension && (this.extension.state === ExtensionState.Installed) && this.colorThemes.some(th => isThemeFromExtension(th, this.extension));
		this.class = this.enabled ? SetColorThemeAction.EnabledClass : SetColorThemeAction.DisabledClass;
	}

	async run({ showCurrentTheme, ignoreFocusLost }: { showCurrentTheme: boolean, ignoreFocusLost: boolean } = { showCurrentTheme: false, ignoreFocusLost: false }): Promise<any> {
		this.colorThemes = await this.workbenchThemeService.getColorThemes();

		this.update();
		if (!this.enabled) {
			return;
		}
		const currentTheme = this.workbenchThemeService.getColorTheme();

		const delayer = new Delayer<any>(100);
		const picks = getQuickPickEntries(this.colorThemes, currentTheme, this.extension, showCurrentTheme);
		const pickedTheme = await this.quickInputService.pick(
			picks,
			{
				placeHolder: localize('select color theme', "Select Color Theme"),
				onDidFocus: item => delayer.trigger(() => this.workbenchThemeService.setColorTheme(item.id, undefined)),
				ignoreFocusLost
			});
		return this.workbenchThemeService.setColorTheme(pickedTheme ? pickedTheme.id : currentTheme.id, 'auto');
	}
}

export class SetFileIconThemeAction extends ExtensionAction {

	private static readonly EnabledClass = `${ExtensionAction.LABEL_ACTION_CLASS} theme`;
	private static readonly DisabledClass = `${SetFileIconThemeAction.EnabledClass} disabled`;

	static async create(workbenchThemeService: IWorkbenchThemeService, instantiationService: IInstantiationService, extension: IExtension): Promise<SetFileIconThemeAction | undefined> {
		const themes = await workbenchThemeService.getFileIconThemes();
		if (themes.some(th => isThemeFromExtension(th, extension))) {
			const action = instantiationService.createInstance(SetFileIconThemeAction, themes);
			action.extension = extension;
			return action;
		}
		return undefined;
	}

	constructor(
		private fileIconThemes: IWorkbenchFileIconTheme[],
		@IExtensionService extensionService: IExtensionService,
		@IWorkbenchThemeService private readonly workbenchThemeService: IWorkbenchThemeService,
		@IQuickInputService private readonly quickInputService: IQuickInputService
	) {
		super(`extensions.fileIconTheme`, localize('file icon theme', "Set File Icon Theme"), SetFileIconThemeAction.DisabledClass, false);
		this._register(Event.any<any>(extensionService.onDidChangeExtensions, workbenchThemeService.onDidFileIconThemeChange)(() => this.update(), this));
		this.update();
	}

	update(): void {
		this.enabled = !!this.extension && (this.extension.state === ExtensionState.Installed) && this.fileIconThemes.some(th => isThemeFromExtension(th, this.extension));
		this.class = this.enabled ? SetFileIconThemeAction.EnabledClass : SetFileIconThemeAction.DisabledClass;
	}

	async run({ showCurrentTheme, ignoreFocusLost }: { showCurrentTheme: boolean, ignoreFocusLost: boolean } = { showCurrentTheme: false, ignoreFocusLost: false }): Promise<any> {
		this.fileIconThemes = await this.workbenchThemeService.getFileIconThemes();
		this.update();
		if (!this.enabled) {
			return;
		}
		const currentTheme = this.workbenchThemeService.getFileIconTheme();

		const delayer = new Delayer<any>(100);
		const picks = getQuickPickEntries(this.fileIconThemes, currentTheme, this.extension, showCurrentTheme);
		const pickedTheme = await this.quickInputService.pick(
			picks,
			{
				placeHolder: localize('select file icon theme', "Select File Icon Theme"),
				onDidFocus: item => delayer.trigger(() => this.workbenchThemeService.setFileIconTheme(item.id, undefined)),
				ignoreFocusLost
			});
		return this.workbenchThemeService.setFileIconTheme(pickedTheme ? pickedTheme.id : currentTheme.id, 'auto');
	}
}

export class SetProductIconThemeAction extends ExtensionAction {

	private static readonly EnabledClass = `${ExtensionAction.LABEL_ACTION_CLASS} theme`;
	private static readonly DisabledClass = `${SetProductIconThemeAction.EnabledClass} disabled`;

	static async create(workbenchThemeService: IWorkbenchThemeService, instantiationService: IInstantiationService, extension: IExtension): Promise<SetProductIconThemeAction | undefined> {
		const themes = await workbenchThemeService.getProductIconThemes();
		if (themes.some(th => isThemeFromExtension(th, extension))) {
			const action = instantiationService.createInstance(SetProductIconThemeAction, themes);
			action.extension = extension;
			return action;
		}
		return undefined;
	}

	constructor(
		private productIconThemes: IWorkbenchProductIconTheme[],
		@IExtensionService extensionService: IExtensionService,
		@IWorkbenchThemeService private readonly workbenchThemeService: IWorkbenchThemeService,
		@IQuickInputService private readonly quickInputService: IQuickInputService
	) {
		super(`extensions.productIconTheme`, localize('product icon theme', "Set Product Icon Theme"), SetProductIconThemeAction.DisabledClass, false);
		this._register(Event.any<any>(extensionService.onDidChangeExtensions, workbenchThemeService.onDidProductIconThemeChange)(() => this.update(), this));
		this.enabled = true; // enabled by default
		this.class = SetProductIconThemeAction.EnabledClass;
		//		this.update();
	}

	update(): void {
		this.enabled = !!this.extension && (this.extension.state === ExtensionState.Installed) && this.productIconThemes.some(th => isThemeFromExtension(th, this.extension));
		this.class = this.enabled ? SetProductIconThemeAction.EnabledClass : SetProductIconThemeAction.DisabledClass;
	}

	async run({ showCurrentTheme, ignoreFocusLost }: { showCurrentTheme: boolean, ignoreFocusLost: boolean } = { showCurrentTheme: false, ignoreFocusLost: false }): Promise<any> {
		this.productIconThemes = await this.workbenchThemeService.getProductIconThemes();
		this.update();
		if (!this.enabled) {
			return;
		}

		const currentTheme = this.workbenchThemeService.getProductIconTheme();

		const delayer = new Delayer<any>(100);
		const picks = getQuickPickEntries(this.productIconThemes, currentTheme, this.extension, showCurrentTheme);
		const pickedTheme = await this.quickInputService.pick(
			picks,
			{
				placeHolder: localize('select product icon theme', "Select Product Icon Theme"),
				onDidFocus: item => delayer.trigger(() => this.workbenchThemeService.setProductIconTheme(item.id, undefined)),
				ignoreFocusLost
			});
		return this.workbenchThemeService.setProductIconTheme(pickedTheme ? pickedTheme.id : currentTheme.id, 'auto');
	}
}

export class ShowRecommendedExtensionAction extends Action {

	static readonly ID = 'workbench.extensions.action.showRecommendedExtension';
	static readonly LABEL = localize('showRecommendedExtension', "Show Recommended Extension");

	private extensionId: string;

	constructor(
		extensionId: string,
		@IViewletService private readonly viewletService: IViewletService,
		@IExtensionsWorkbenchService private readonly extensionWorkbenchService: IExtensionsWorkbenchService,
	) {
		super(ShowRecommendedExtensionAction.ID, ShowRecommendedExtensionAction.LABEL, undefined, false);
		this.extensionId = extensionId;
	}

	run(): Promise<any> {
		return this.viewletService.openViewlet(VIEWLET_ID, true)
			.then(viewlet => viewlet?.getViewPaneContainer() as IExtensionsViewPaneContainer)
			.then(viewlet => {
				viewlet.search(`@id:${this.extensionId}`);
				viewlet.focus();
				return this.extensionWorkbenchService.queryGallery({ names: [this.extensionId], source: 'install-recommendation', pageSize: 1 }, CancellationToken.None)
					.then(pager => {
						if (pager && pager.firstPage && pager.firstPage.length) {
							const extension = pager.firstPage[0];
							return this.extensionWorkbenchService.open(extension);
						}
						return null;
					});
			});
	}
}

export class InstallRecommendedExtensionAction extends Action {

	static readonly ID = 'workbench.extensions.action.installRecommendedExtension';
	static readonly LABEL = localize('installRecommendedExtension', "Install Recommended Extension");

	private extensionId: string;

	constructor(
		extensionId: string,
		@IViewletService private readonly viewletService: IViewletService,
		@IInstantiationService private readonly instantiationService: IInstantiationService,
		@IExtensionsWorkbenchService private readonly extensionWorkbenchService: IExtensionsWorkbenchService,
	) {
		super(InstallRecommendedExtensionAction.ID, InstallRecommendedExtensionAction.LABEL, undefined, false);
		this.extensionId = extensionId;
	}

	async run(): Promise<any> {
		const viewlet = await this.viewletService.openViewlet(VIEWLET_ID, true);
		const viewPaneContainer = viewlet?.getViewPaneContainer() as IExtensionsViewPaneContainer;
		viewPaneContainer.search(`@id:${this.extensionId}`);
		viewPaneContainer.focus();
		const pager = await this.extensionWorkbenchService.queryGallery({ names: [this.extensionId], source: 'install-recommendation', pageSize: 1 }, CancellationToken.None);
		if (pager && pager.firstPage && pager.firstPage.length) {
			const extension = pager.firstPage[0];
			await this.extensionWorkbenchService.open(extension);
			try {
				await this.extensionWorkbenchService.install(extension);
			} catch (err) {
				this.instantiationService.createInstance(PromptExtensionInstallFailureAction, extension, extension.latestVersion, InstallOperation.Install, err).run();
			}
		}
	}
}

export class IgnoreExtensionRecommendationAction extends Action {

	static readonly ID = 'extensions.ignore';

	private static readonly Class = `${ExtensionAction.LABEL_ACTION_CLASS} ignore`;

	constructor(
		private readonly extension: IExtension,
		@IExtensionIgnoredRecommendationsService private readonly extensionRecommendationsManagementService: IExtensionIgnoredRecommendationsService,
	) {
		super(IgnoreExtensionRecommendationAction.ID, 'Ignore Recommendation');

		this.class = IgnoreExtensionRecommendationAction.Class;
		this.tooltip = localize('ignoreExtensionRecommendation', "Do not recommend this extension again");
		this.enabled = true;
	}

	public run(): Promise<any> {
		this.extensionRecommendationsManagementService.toggleGlobalIgnoredRecommendation(this.extension.identifier.id, true);
		return Promise.resolve();
	}
}

export class UndoIgnoreExtensionRecommendationAction extends Action {

	static readonly ID = 'extensions.ignore';

	private static readonly Class = `${ExtensionAction.LABEL_ACTION_CLASS} undo-ignore`;

	constructor(
		private readonly extension: IExtension,
		@IExtensionIgnoredRecommendationsService private readonly extensionRecommendationsManagementService: IExtensionIgnoredRecommendationsService,
	) {
		super(UndoIgnoreExtensionRecommendationAction.ID, 'Undo');

		this.class = UndoIgnoreExtensionRecommendationAction.Class;
		this.tooltip = localize('undo', "Undo");
		this.enabled = true;
	}

	public run(): Promise<any> {
		this.extensionRecommendationsManagementService.toggleGlobalIgnoredRecommendation(this.extension.identifier.id, false);
		return Promise.resolve();
	}
}

export class SearchExtensionsAction extends Action {

	constructor(
		private readonly searchValue: string,
		@IViewletService private readonly viewletService: IViewletService
	) {
		super('extensions.searchExtensions', localize('search recommendations', "Search Extensions"), undefined, true);
	}

	async run(): Promise<void> {
		const viewPaneContainer = (await this.viewletService.openViewlet(VIEWLET_ID, true))?.getViewPaneContainer() as IExtensionsViewPaneContainer;
		viewPaneContainer.search(this.searchValue);
		viewPaneContainer.focus();
	}
}

export abstract class AbstractConfigureRecommendedExtensionsAction extends Action {

	constructor(
		id: string,
		label: string,
		@IWorkspaceContextService protected contextService: IWorkspaceContextService,
		@IFileService private readonly fileService: IFileService,
		@ITextFileService private readonly textFileService: ITextFileService,
		@IEditorService protected editorService: IEditorService,
		@IJSONEditingService private readonly jsonEditingService: IJSONEditingService,
		@ITextModelService private readonly textModelResolverService: ITextModelService
	) {
		super(id, label);
	}

	protected openExtensionsFile(extensionsFileResource: URI): Promise<any> {
		return this.getOrCreateExtensionsFile(extensionsFileResource)
			.then(({ created, content }) =>
				this.getSelectionPosition(content, extensionsFileResource, ['recommendations'])
					.then(selection => this.editorService.openEditor({
						resource: extensionsFileResource,
						options: {
							pinned: created,
							selection
						}
					})),
				error => Promise.reject(new Error(localize('OpenExtensionsFile.failed', "Unable to create 'extensions.json' file inside the '.vscode' folder ({0}).", error))));
	}

	protected openWorkspaceConfigurationFile(workspaceConfigurationFile: URI): Promise<any> {
		return this.getOrUpdateWorkspaceConfigurationFile(workspaceConfigurationFile)
			.then(content => this.getSelectionPosition(content.value.toString(), content.resource, ['extensions', 'recommendations']))
			.then(selection => this.editorService.openEditor({
				resource: workspaceConfigurationFile,
				options: {
					selection,
					forceReload: true // because content has changed
				}
			}));
	}

	private getOrUpdateWorkspaceConfigurationFile(workspaceConfigurationFile: URI): Promise<IFileContent> {
		return Promise.resolve(this.fileService.readFile(workspaceConfigurationFile))
			.then(content => {
				const workspaceRecommendations = <IExtensionsConfigContent>json.parse(content.value.toString())['extensions'];
				if (!workspaceRecommendations || !workspaceRecommendations.recommendations) {
					return this.jsonEditingService.write(workspaceConfigurationFile, [{ path: ['extensions'], value: { recommendations: [] } }], true)
						.then(() => this.fileService.readFile(workspaceConfigurationFile));
				}
				return content;
			});
	}

	private getSelectionPosition(content: string, resource: URI, path: json.JSONPath): Promise<ITextEditorSelection | undefined> {
		const tree = json.parseTree(content);
		const node = json.findNodeAtLocation(tree, path);
		if (node && node.parent && node.parent.children) {
			const recommendationsValueNode = node.parent.children[1];
			const lastExtensionNode = recommendationsValueNode.children && recommendationsValueNode.children.length ? recommendationsValueNode.children[recommendationsValueNode.children.length - 1] : null;
			const offset = lastExtensionNode ? lastExtensionNode.offset + lastExtensionNode.length : recommendationsValueNode.offset + 1;
			return Promise.resolve(this.textModelResolverService.createModelReference(resource))
				.then(reference => {
					const position = reference.object.textEditorModel.getPositionAt(offset);
					reference.dispose();
					return <ITextEditorSelection>{
						startLineNumber: position.lineNumber,
						startColumn: position.column,
						endLineNumber: position.lineNumber,
						endColumn: position.column,
					};
				});
		}
		return Promise.resolve(undefined);
	}

	private getOrCreateExtensionsFile(extensionsFileResource: URI): Promise<{ created: boolean, extensionsFileResource: URI, content: string }> {
		return Promise.resolve(this.fileService.readFile(extensionsFileResource)).then(content => {
			return { created: false, extensionsFileResource, content: content.value.toString() };
		}, err => {
			return this.textFileService.write(extensionsFileResource, ExtensionsConfigurationInitialContent).then(() => {
				return { created: true, extensionsFileResource, content: ExtensionsConfigurationInitialContent };
			});
		});
	}
}

export class ConfigureWorkspaceRecommendedExtensionsAction extends AbstractConfigureRecommendedExtensionsAction {

	static readonly ID = 'workbench.extensions.action.configureWorkspaceRecommendedExtensions';
	static readonly LABEL = localize('configureWorkspaceRecommendedExtensions', "Configure Recommended Extensions (Workspace)");

	constructor(
		id: string,
		label: string,
		@IFileService fileService: IFileService,
		@ITextFileService textFileService: ITextFileService,
		@IWorkspaceContextService contextService: IWorkspaceContextService,
		@IEditorService editorService: IEditorService,
		@IJSONEditingService jsonEditingService: IJSONEditingService,
		@ITextModelService textModelResolverService: ITextModelService
	) {
		super(id, label, contextService, fileService, textFileService, editorService, jsonEditingService, textModelResolverService);
		this._register(this.contextService.onDidChangeWorkbenchState(() => this.update(), this));
		this.update();
	}

	private update(): void {
		this.enabled = this.contextService.getWorkbenchState() !== WorkbenchState.EMPTY;
	}

	public run(): Promise<void> {
		switch (this.contextService.getWorkbenchState()) {
			case WorkbenchState.FOLDER:
				return this.openExtensionsFile(this.contextService.getWorkspace().folders[0].toResource(EXTENSIONS_CONFIG));
			case WorkbenchState.WORKSPACE:
				return this.openWorkspaceConfigurationFile(this.contextService.getWorkspace().configuration!);
		}
		return Promise.resolve();
	}
}

export class ConfigureWorkspaceFolderRecommendedExtensionsAction extends AbstractConfigureRecommendedExtensionsAction {

	static readonly ID = 'workbench.extensions.action.configureWorkspaceFolderRecommendedExtensions';
	static readonly LABEL = localize('configureWorkspaceFolderRecommendedExtensions', "Configure Recommended Extensions (Workspace Folder)");

	constructor(
		id: string,
		label: string,
		@IFileService fileService: IFileService,
		@ITextFileService textFileService: ITextFileService,
		@IWorkspaceContextService contextService: IWorkspaceContextService,
		@IEditorService editorService: IEditorService,
		@IJSONEditingService jsonEditingService: IJSONEditingService,
		@ITextModelService textModelResolverService: ITextModelService,
		@ICommandService private readonly commandService: ICommandService
	) {
		super(id, label, contextService, fileService, textFileService, editorService, jsonEditingService, textModelResolverService);
	}

	public run(): Promise<any> {
		const folderCount = this.contextService.getWorkspace().folders.length;
		const pickFolderPromise = folderCount === 1 ? Promise.resolve(this.contextService.getWorkspace().folders[0]) : this.commandService.executeCommand<IWorkspaceFolder>(PICK_WORKSPACE_FOLDER_COMMAND_ID);
		return Promise.resolve(pickFolderPromise)
			.then(workspaceFolder => {
				if (workspaceFolder) {
					return this.openExtensionsFile(workspaceFolder.toResource(EXTENSIONS_CONFIG));
				}
				return null;
			});
	}
}

export class StatusLabelAction extends Action implements IExtensionContainer {

	private static readonly ENABLED_CLASS = `${ExtensionAction.TEXT_ACTION_CLASS} extension-status-label`;
	private static readonly DISABLED_CLASS = `${StatusLabelAction.ENABLED_CLASS} hide`;

	private initialStatus: ExtensionState | null = null;
	private status: ExtensionState | null = null;
	private enablementState: EnablementState | null = null;

	private _extension: IExtension | null = null;
	get extension(): IExtension | null { return this._extension; }
	set extension(extension: IExtension | null) {
		if (!(this._extension && extension && areSameExtensions(this._extension.identifier, extension.identifier))) {
			// Different extension. Reset
			this.initialStatus = null;
			this.status = null;
			this.enablementState = null;
		}
		this._extension = extension;
		this.update();
	}

	constructor(
		@IExtensionService private readonly extensionService: IExtensionService,
		@IExtensionManagementServerService private readonly extensionManagementServerService: IExtensionManagementServerService
	) {
		super('extensions.action.statusLabel', '', StatusLabelAction.DISABLED_CLASS, false);
	}

	update(): void {
		this.computeLabel()
			.then(label => {
				this.label = label || '';
				this.class = label ? StatusLabelAction.ENABLED_CLASS : StatusLabelAction.DISABLED_CLASS;
			});
	}

	private async computeLabel(): Promise<string | null> {
		if (!this.extension) {
			return null;
		}

		const currentStatus = this.status;
		const currentEnablementState = this.enablementState;
		this.status = this.extension.state;
		if (this.initialStatus === null) {
			this.initialStatus = this.status;
		}
		this.enablementState = this.extension.enablementState;

		const runningExtensions = await this.extensionService.getExtensions();
		const canAddExtension = () => {
			const runningExtension = runningExtensions.filter(e => areSameExtensions({ id: e.identifier.value, uuid: e.uuid }, this.extension!.identifier))[0];
			if (this.extension!.local) {
				if (runningExtension && this.extension!.version === runningExtension.version) {
					return true;
				}
				return this.extensionService.canAddExtension(toExtensionDescription(this.extension!.local));
			}
			return false;
		};
		const canRemoveExtension = () => {
			if (this.extension!.local) {
				if (runningExtensions.every(e => !(areSameExtensions({ id: e.identifier.value, uuid: e.uuid }, this.extension!.identifier) && this.extension!.server === this.extensionManagementServerService.getExtensionManagementServer(toExtension(e))))) {
					return true;
				}
				return this.extensionService.canRemoveExtension(toExtensionDescription(this.extension!.local));
			}
			return false;
		};

		if (currentStatus !== null) {
			if (currentStatus === ExtensionState.Installing && this.status === ExtensionState.Installed) {
				return canAddExtension() ? this.initialStatus === ExtensionState.Installed ? localize('updated', "Updated") : localize('installed', "Installed") : null;
			}
			if (currentStatus === ExtensionState.Uninstalling && this.status === ExtensionState.Uninstalled) {
				this.initialStatus = this.status;
				return canRemoveExtension() ? localize('uninstalled', "Uninstalled") : null;
			}
		}

		if (currentEnablementState !== null) {
			const currentlyEnabled = currentEnablementState === EnablementState.EnabledGlobally || currentEnablementState === EnablementState.EnabledWorkspace;
			const enabled = this.enablementState === EnablementState.EnabledGlobally || this.enablementState === EnablementState.EnabledWorkspace;
			if (!currentlyEnabled && enabled) {
				return canAddExtension() ? localize('enabled', "Enabled") : null;
			}
			if (currentlyEnabled && !enabled) {
				return canRemoveExtension() ? localize('disabled', "Disabled") : null;
			}

		}

		return null;
	}

	run(): Promise<any> {
		return Promise.resolve();
	}

}

export class MaliciousStatusLabelAction extends ExtensionAction {

	private static readonly Class = `${ExtensionAction.TEXT_ACTION_CLASS} malicious-status`;

	constructor(long: boolean) {
		const tooltip = localize('malicious tooltip', "This extension was reported to be problematic.");
		const label = long ? tooltip : localize({ key: 'malicious', comment: ['Refers to a malicious extension'] }, "Malicious");
		super('extensions.install', label, '', false);
		this.tooltip = localize('malicious tooltip', "This extension was reported to be problematic.");
	}

	update(): void {
		if (this.extension && this.extension.isMalicious) {
			this.class = `${MaliciousStatusLabelAction.Class} malicious`;
		} else {
			this.class = `${MaliciousStatusLabelAction.Class} not-malicious`;
		}
	}

	run(): Promise<any> {
		return Promise.resolve();
	}
}

export class ToggleSyncExtensionAction extends ExtensionDropDownAction {

	private static readonly IGNORED_SYNC_CLASS = `${ExtensionAction.ICON_ACTION_CLASS} extension-sync ${ThemeIcon.asClassName(syncIgnoredIcon)}`;
	private static readonly SYNC_CLASS = `${ToggleSyncExtensionAction.ICON_ACTION_CLASS} extension-sync ${ThemeIcon.asClassName(syncEnabledIcon)}`;

	constructor(
		@IConfigurationService private readonly configurationService: IConfigurationService,
		@IExtensionsWorkbenchService private readonly extensionsWorkbenchService: IExtensionsWorkbenchService,
		@IUserDataAutoSyncEnablementService private readonly userDataAutoSyncEnablementService: IUserDataAutoSyncEnablementService,
		@IInstantiationService instantiationService: IInstantiationService,
	) {
		super('extensions.sync', '', ToggleSyncExtensionAction.SYNC_CLASS, false, true, instantiationService);
		this._register(Event.filter(this.configurationService.onDidChangeConfiguration, e => e.affectedKeys.includes('settingsSync.ignoredExtensions'))(() => this.update()));
		this._register(userDataAutoSyncEnablementService.onDidChangeEnablement(() => this.update()));
		this.update();
	}

	update(): void {
		this.enabled = !!this.extension && this.userDataAutoSyncEnablementService.isEnabled() && this.extension.state === ExtensionState.Installed;
		if (this.extension) {
			const isIgnored = this.extensionsWorkbenchService.isExtensionIgnoredToSync(this.extension);
			this.class = isIgnored ? ToggleSyncExtensionAction.IGNORED_SYNC_CLASS : ToggleSyncExtensionAction.SYNC_CLASS;
			this.tooltip = isIgnored ? localize('ignored', "This extension is ignored during sync") : localize('synced', "This extension is synced");
		}
	}

	async run(): Promise<any> {
		return super.run({
			actionGroups: [
				[
					new Action(
						'extensions.syncignore',
						this.extensionsWorkbenchService.isExtensionIgnoredToSync(this.extension!) ? localize('sync', "Sync this extension") : localize('do not sync', "Do not sync this extension")
						, undefined, true, () => this.extensionsWorkbenchService.toggleExtensionIgnoredToSync(this.extension!))
				]
			], disposeActionsOnHide: true
		});
	}
}

export class ExtensionToolTipAction extends ExtensionAction {

	private static readonly Class = `${ExtensionAction.TEXT_ACTION_CLASS} disable-status`;

	updateWhenCounterExtensionChanges: boolean = true;
	private _runningExtensions: IExtensionDescription[] | null = null;

	constructor(
		private readonly warningAction: SystemDisabledWarningAction,
		private readonly reloadAction: ReloadAction,
		@IWorkbenchExtensionEnablementService private readonly extensionEnablementService: IWorkbenchExtensionEnablementService,
		@IExtensionService private readonly extensionService: IExtensionService,
		@IExtensionManagementServerService private readonly extensionManagementServerService: IExtensionManagementServerService
	) {
		super('extensions.tooltip', warningAction.tooltip, `${ExtensionToolTipAction.Class} hide`, false);
		this._register(warningAction.onDidChange(() => this.update(), this));
		this._register(this.extensionService.onDidChangeExtensions(this.updateRunningExtensions, this));
		this.updateRunningExtensions();
	}

	private updateRunningExtensions(): void {
		this.extensionService.getExtensions().then(runningExtensions => { this._runningExtensions = runningExtensions; this.update(); });
	}

	update(): void {
		this.label = this.getTooltip();
		this.class = ExtensionToolTipAction.Class;
		if (!this.label) {
			this.class = `${ExtensionToolTipAction.Class} hide`;
		}
	}

	private getTooltip(): string {
		if (!this.extension) {
			return '';
		}
		if (this.reloadAction.enabled) {
			return this.reloadAction.tooltip;
		}
		if (this.warningAction.tooltip) {
			return this.warningAction.tooltip;
		}
		if (this.extension && this.extension.local && this.extension.state === ExtensionState.Installed && this._runningExtensions) {
			const isRunning = this._runningExtensions.some(e => areSameExtensions({ id: e.identifier.value, uuid: e.uuid }, this.extension!.identifier));
			const isEnabled = this.extensionEnablementService.isEnabled(this.extension.local);

			if (isEnabled && isRunning) {
				if (this.extensionManagementServerService.localExtensionManagementServer && this.extensionManagementServerService.remoteExtensionManagementServer) {
					if (this.extension.server === this.extensionManagementServerService.remoteExtensionManagementServer) {
						return localize('extension enabled on remote', "Extension is enabled on '{0}'", this.extension.server.label);
					}
				}
				if (this.extension.enablementState === EnablementState.EnabledGlobally) {
					return localize('globally enabled', "This extension is enabled globally.");
				}
				if (this.extension.enablementState === EnablementState.EnabledWorkspace) {
					return localize('workspace enabled', "This extension is enabled for this workspace by the user.");
				}
			}

			if (!isEnabled && !isRunning) {
				if (this.extension.enablementState === EnablementState.DisabledGlobally) {
					return localize('globally disabled', "This extension is disabled globally by the user.");
				}
				if (this.extension.enablementState === EnablementState.DisabledWorkspace) {
					return localize('workspace disabled', "This extension is disabled for this workspace by the user.");
				}
			}
		}
		return '';
	}

	run(): Promise<any> {
		return Promise.resolve(null);
	}
}

export class SystemDisabledWarningAction extends ExtensionAction {

	private static readonly CLASS = `${ExtensionAction.ICON_ACTION_CLASS} system-disable`;
	private static readonly WARNING_CLASS = `${SystemDisabledWarningAction.CLASS} ${ThemeIcon.asClassName(warningIcon)}`;
	private static readonly INFO_CLASS = `${SystemDisabledWarningAction.CLASS} ${ThemeIcon.asClassName(infoIcon)}`;
	private static readonly TRUST_CLASS = `${SystemDisabledWarningAction.CLASS} ${ThemeIcon.asClassName(trustIcon)}`;

	updateWhenCounterExtensionChanges: boolean = true;
	private _runningExtensions: IExtensionDescription[] | null = null;

	constructor(
		@IExtensionManagementServerService private readonly extensionManagementServerService: IExtensionManagementServerService,
		@ILabelService private readonly labelService: ILabelService,
		@IExtensionsWorkbenchService private readonly extensionsWorkbenchService: IExtensionsWorkbenchService,
		@IExtensionService private readonly extensionService: IExtensionService,
		@IProductService private readonly productService: IProductService,
		@IConfigurationService private readonly configurationService: IConfigurationService,
		@IWorkspaceTrustService private readonly workspaceTrustService: IWorkspaceTrustService
	) {
		super('extensions.install', '', `${SystemDisabledWarningAction.CLASS} hide`, false);
		this._register(this.labelService.onDidChangeFormatters(() => this.update(), this));
		this._register(this.extensionService.onDidChangeExtensions(this.updateRunningExtensions, this));
		this.updateRunningExtensions();
		this.update();
	}

	private updateRunningExtensions(): void {
		this.extensionService.getExtensions().then(runningExtensions => { this._runningExtensions = runningExtensions; this.update(); });
	}

	update(): void {
		this.class = `${SystemDisabledWarningAction.CLASS} hide`;
		this.tooltip = '';
		if (
			!this.extension ||
			!this.extension.local ||
			!this.extension.server ||
			!this._runningExtensions ||
			this.extension.state !== ExtensionState.Installed
		) {
			return;
		}
		if (this.extensionManagementServerService.localExtensionManagementServer && this.extensionManagementServerService.remoteExtensionManagementServer) {
			if (isLanguagePackExtension(this.extension.local.manifest)) {
				if (!this.extensionsWorkbenchService.installed.some(e => areSameExtensions(e.identifier, this.extension!.identifier) && e.server !== this.extension!.server)) {
					this.class = `${SystemDisabledWarningAction.INFO_CLASS}`;
					this.tooltip = this.extension.server === this.extensionManagementServerService.localExtensionManagementServer
						? localize('Install language pack also in remote server', "Install the language pack extension on '{0}' to enable it there also.", this.extensionManagementServerService.remoteExtensionManagementServer.label)
						: localize('Install language pack also locally', "Install the language pack extension locally to enable it there also.");
				}
				return;
			}
		}
		if (this.extension.enablementState === EnablementState.DisabledByExtensionKind) {
			if (!this.extensionsWorkbenchService.installed.some(e => areSameExtensions(e.identifier, this.extension!.identifier) && e.server !== this.extension!.server)) {
				const server = this.extensionManagementServerService.localExtensionManagementServer === this.extension.server ? this.extensionManagementServerService.remoteExtensionManagementServer : this.extensionManagementServerService.localExtensionManagementServer;
				this.class = `${SystemDisabledWarningAction.WARNING_CLASS}`;
				if (server) {
					this.tooltip = localize('Install in other server to enable', "Install the extension on '{0}' to enable.", server.label);
				} else {
					this.tooltip = localize('disabled because of extension kind', "This extension has defined that it cannot run on the remote server");
				}
				return;
			}
		}
		if (this.extensionManagementServerService.localExtensionManagementServer && this.extensionManagementServerService.remoteExtensionManagementServer) {
			const runningExtension = this._runningExtensions.filter(e => areSameExtensions({ id: e.identifier.value, uuid: e.uuid }, this.extension!.identifier))[0];
			const runningExtensionServer = runningExtension ? this.extensionManagementServerService.getExtensionManagementServer(toExtension(runningExtension)) : null;
			if (this.extension.server === this.extensionManagementServerService.localExtensionManagementServer && runningExtensionServer === this.extensionManagementServerService.remoteExtensionManagementServer) {
				if (prefersExecuteOnWorkspace(this.extension.local!.manifest, this.productService, this.configurationService)) {
					this.class = `${SystemDisabledWarningAction.INFO_CLASS}`;
					this.tooltip = localize('disabled locally', "Extension is enabled on '{0}' and disabled locally.", this.extensionManagementServerService.remoteExtensionManagementServer.label);
				}
				return;
			}
			if (this.extension.server === this.extensionManagementServerService.remoteExtensionManagementServer && runningExtensionServer === this.extensionManagementServerService.localExtensionManagementServer) {
				if (prefersExecuteOnUI(this.extension.local!.manifest, this.productService, this.configurationService)) {
					this.class = `${SystemDisabledWarningAction.INFO_CLASS}`;
					this.tooltip = localize('disabled remotely', "Extension is enabled locally and disabled on '{0}'.", this.extensionManagementServerService.remoteExtensionManagementServer.label);
				}
				return;
			}
		}
		if (this.workspaceTrustService.isWorkspaceTrustEnabled() && this.extension.enablementState === EnablementState.DisabledByTrustRequirement) {
			this.class = `${SystemDisabledWarningAction.TRUST_CLASS}`;
			this.tooltip = localize('extension disabled because of trust requirement', "This extension has been disabled because the current workspace is not trusted");
			return;
		}
	}

	run(): Promise<any> {
		return Promise.resolve(null);
	}
}

export class ReinstallAction extends Action {

	static readonly ID = 'workbench.extensions.action.reinstall';
	static readonly LABEL = localize('reinstall', "Reinstall Extension...");

	constructor(
		id: string = ReinstallAction.ID, label: string = ReinstallAction.LABEL,
		@IExtensionsWorkbenchService private readonly extensionsWorkbenchService: IExtensionsWorkbenchService,
		@IQuickInputService private readonly quickInputService: IQuickInputService,
		@INotificationService private readonly notificationService: INotificationService,
		@IHostService private readonly hostService: IHostService,
		@IInstantiationService private readonly instantiationService: IInstantiationService,
		@IExtensionService private readonly extensionService: IExtensionService
	) {
		super(id, label);
	}

	get enabled(): boolean {
		return this.extensionsWorkbenchService.local.filter(l => !l.isBuiltin && l.local).length > 0;
	}

	run(): Promise<any> {
		return this.quickInputService.pick(this.getEntries(), { placeHolder: localize('selectExtensionToReinstall', "Select Extension to Reinstall") })
			.then(pick => pick && this.reinstallExtension(pick.extension));
	}

	private getEntries(): Promise<(IQuickPickItem & { extension: IExtension })[]> {
		return this.extensionsWorkbenchService.queryLocal()
			.then(local => {
				const entries = local
					.filter(extension => !extension.isBuiltin)
					.map(extension => {
						return {
							id: extension.identifier.id,
							label: extension.displayName,
							description: extension.identifier.id,
							extension,
						} as (IQuickPickItem & { extension: IExtension });
					});
				return entries;
			});
	}

	private reinstallExtension(extension: IExtension): Promise<void> {
		return this.instantiationService.createInstance(SearchExtensionsAction, '@installed ').run()
			.then(() => {
				return this.extensionsWorkbenchService.reinstall(extension)
					.then(extension => {
						const requireReload = !(extension.local && this.extensionService.canAddExtension(toExtensionDescription(extension.local)));
						const message = requireReload ? localize('ReinstallAction.successReload', "Please reload Visual Studio Code to complete reinstalling the extension {0}.", extension.identifier.id)
							: localize('ReinstallAction.success', "Reinstalling the extension {0} is completed.", extension.identifier.id);
						const actions = requireReload ? [{
							label: localize('InstallVSIXAction.reloadNow', "Reload Now"),
							run: () => this.hostService.reload()
						}] : [];
						this.notificationService.prompt(
							Severity.Info,
							message,
							actions,
							{ sticky: true }
						);
					}, error => this.notificationService.error(error));
			});
	}
}

export class InstallSpecificVersionOfExtensionAction extends Action {

	static readonly ID = 'workbench.extensions.action.install.specificVersion';
	static readonly LABEL = localize('install previous version', "Install Specific Version of Extension...");

	constructor(
		id: string = InstallSpecificVersionOfExtensionAction.ID, label: string = InstallSpecificVersionOfExtensionAction.LABEL,
		@IExtensionsWorkbenchService private readonly extensionsWorkbenchService: IExtensionsWorkbenchService,
		@IExtensionGalleryService private readonly extensionGalleryService: IExtensionGalleryService,
		@IQuickInputService private readonly quickInputService: IQuickInputService,
		@INotificationService private readonly notificationService: INotificationService,
		@IHostService private readonly hostService: IHostService,
		@IInstantiationService private readonly instantiationService: IInstantiationService,
		@IExtensionService private readonly extensionService: IExtensionService,
		@IWorkbenchExtensionEnablementService private readonly extensionEnablementService: IWorkbenchExtensionEnablementService,
	) {
		super(id, label);
	}

	get enabled(): boolean {
		return this.extensionsWorkbenchService.local.some(l => this.isEnabled(l));
	}

	async run(): Promise<any> {
		const extensionPick = await this.quickInputService.pick(this.getExtensionEntries(), { placeHolder: localize('selectExtension', "Select Extension"), matchOnDetail: true });
		if (extensionPick && extensionPick.extension) {
			const versionPick = await this.quickInputService.pick(extensionPick.versions.map(v => ({ id: v.version, label: v.version, description: `${getRelativeDateLabel(new Date(Date.parse(v.date)))}${v.version === extensionPick.extension.version ? ` (${localize('current', "Current")})` : ''}` })), { placeHolder: localize('selectVersion', "Select Version to Install"), matchOnDetail: true });
			if (versionPick) {
				if (extensionPick.extension.version !== versionPick.id) {
					await this.install(extensionPick.extension, versionPick.id);
				}
			}
		}
	}

	private isEnabled(extension: IExtension): boolean {
		return !!extension.gallery && !!extension.local && this.extensionEnablementService.isEnabled(extension.local);
	}

	private async getExtensionEntries(): Promise<(IQuickPickItem & { extension: IExtension, versions: IGalleryExtensionVersion[] })[]> {
		const installed = await this.extensionsWorkbenchService.queryLocal();
		const versionsPromises: Promise<{ extension: IExtension, versions: IGalleryExtensionVersion[] } | null>[] = [];
		for (const extension of installed) {
			if (this.isEnabled(extension)) {
				versionsPromises.push(this.extensionGalleryService.getAllVersions(extension.gallery!, true)
					.then(versions => (versions.length ? { extension, versions } : null)));
			}
		}

		const extensions = await Promise.all(versionsPromises);
		return coalesce(extensions)
			.sort((e1, e2) => e1.extension.displayName.localeCompare(e2.extension.displayName))
			.map(({ extension, versions }) => {
				return {
					id: extension.identifier.id,
					label: extension.displayName || extension.identifier.id,
					description: extension.identifier.id,
					extension,
					versions
				} as (IQuickPickItem & { extension: IExtension, versions: IGalleryExtensionVersion[] });
			});
	}

	private install(extension: IExtension, version: string): Promise<void> {
		return this.instantiationService.createInstance(SearchExtensionsAction, '@installed ').run()
			.then(() => {
				return this.extensionsWorkbenchService.installVersion(extension, version)
					.then(extension => {
						const requireReload = !(extension.local && this.extensionService.canAddExtension(toExtensionDescription(extension.local)));
						const message = requireReload ? localize('InstallAnotherVersionExtensionAction.successReload', "Please reload Visual Studio Code to complete installing the extension {0}.", extension.identifier.id)
							: localize('InstallAnotherVersionExtensionAction.success', "Installing the extension {0} is completed.", extension.identifier.id);
						const actions = requireReload ? [{
							label: localize('InstallAnotherVersionExtensionAction.reloadNow', "Reload Now"),
							run: () => this.hostService.reload()
						}] : [];
						this.notificationService.prompt(
							Severity.Info,
							message,
							actions,
							{ sticky: true }
						);
					}, error => this.notificationService.error(error));
			});
	}
}

interface IExtensionPickItem extends IQuickPickItem {
	extension?: IExtension;
}

export abstract class AbstractInstallExtensionsInServerAction extends Action {

	private extensions: IExtension[] | undefined = undefined;

	constructor(
		id: string,
		@IExtensionsWorkbenchService protected readonly extensionsWorkbenchService: IExtensionsWorkbenchService,
		@IQuickInputService private readonly quickInputService: IQuickInputService,
		@INotificationService private readonly notificationService: INotificationService,
		@IProgressService private readonly progressService: IProgressService,
	) {
		super(id);
		this.update();
		this.extensionsWorkbenchService.queryLocal().then(() => this.updateExtensions());
		this._register(this.extensionsWorkbenchService.onChange(() => {
			if (this.extensions) {
				this.updateExtensions();
			}
		}));
	}

	private updateExtensions(): void {
		this.extensions = this.extensionsWorkbenchService.local;
		this.update();
	}

	private update(): void {
		this.enabled = !!this.extensions && this.getExtensionsToInstall(this.extensions).length > 0;
		this.tooltip = this.label;
	}

	async run(): Promise<void> {
		return this.selectAndInstallExtensions();
	}

	private async queryExtensionsToInstall(): Promise<IExtension[]> {
		const local = await this.extensionsWorkbenchService.queryLocal();
		return this.getExtensionsToInstall(local);
	}

	private async selectAndInstallExtensions(): Promise<void> {
		const quickPick = this.quickInputService.createQuickPick<IExtensionPickItem>();
		quickPick.busy = true;
		const disposable = quickPick.onDidAccept(() => {
			disposable.dispose();
			quickPick.hide();
			quickPick.dispose();
			this.onDidAccept(quickPick.selectedItems);
		});
		quickPick.show();
		const localExtensionsToInstall = await this.queryExtensionsToInstall();
		quickPick.busy = false;
		if (localExtensionsToInstall.length) {
			quickPick.title = this.getQuickPickTitle();
			quickPick.placeholder = localize('select extensions to install', "Select extensions to install");
			quickPick.canSelectMany = true;
			localExtensionsToInstall.sort((e1, e2) => e1.displayName.localeCompare(e2.displayName));
			quickPick.items = localExtensionsToInstall.map<IExtensionPickItem>(extension => ({ extension, label: extension.displayName, description: extension.version }));
		} else {
			quickPick.hide();
			quickPick.dispose();
			this.notificationService.notify({
				severity: Severity.Info,
				message: localize('no local extensions', "There are no extensions to install.")
			});
		}
	}

	private async onDidAccept(selectedItems: ReadonlyArray<IExtensionPickItem>): Promise<void> {
		if (selectedItems.length) {
			const localExtensionsToInstall = selectedItems.filter(r => !!r.extension).map(r => r.extension!);
			if (localExtensionsToInstall.length) {
				await this.progressService.withProgress(
					{
						location: ProgressLocation.Notification,
						title: localize('installing extensions', "Installing Extensions...")
					},
					() => this.installExtensions(localExtensionsToInstall));
				this.notificationService.info(localize('finished installing', "Successfully installed extensions."));
			}
		}
	}

	protected abstract getQuickPickTitle(): string;
	protected abstract getExtensionsToInstall(local: IExtension[]): IExtension[];
	protected abstract installExtensions(extensions: IExtension[]): Promise<void>;
}

export class InstallLocalExtensionsInRemoteAction extends AbstractInstallExtensionsInServerAction {

	constructor(
		@IExtensionsWorkbenchService extensionsWorkbenchService: IExtensionsWorkbenchService,
		@IQuickInputService quickInputService: IQuickInputService,
		@IProgressService progressService: IProgressService,
		@INotificationService notificationService: INotificationService,
		@IExtensionManagementServerService private readonly extensionManagementServerService: IExtensionManagementServerService,
		@IExtensionGalleryService private readonly extensionGalleryService: IExtensionGalleryService,
		@IInstantiationService private readonly instantiationService: IInstantiationService
	) {
		super('workbench.extensions.actions.installLocalExtensionsInRemote', extensionsWorkbenchService, quickInputService, notificationService, progressService);
	}

	get label(): string {
		if (this.extensionManagementServerService && this.extensionManagementServerService.remoteExtensionManagementServer) {
			return localize('select and install local extensions', "Install Local Extensions in '{0}'...", this.extensionManagementServerService.remoteExtensionManagementServer.label);
		}
		return '';
	}

	protected getQuickPickTitle(): string {
		return localize('install local extensions title', "Install Local Extensions in '{0}'", this.extensionManagementServerService.remoteExtensionManagementServer!.label);
	}

	protected getExtensionsToInstall(local: IExtension[]): IExtension[] {
		return local.filter(extension => {
			const action = this.instantiationService.createInstance(RemoteInstallAction, true);
			action.extension = extension;
			return action.enabled;
		});
	}

	protected async installExtensions(localExtensionsToInstall: IExtension[]): Promise<void> {
		const galleryExtensions: IGalleryExtension[] = [];
		const vsixs: URI[] = [];
		await Promises.settled(localExtensionsToInstall.map(async extension => {
			if (this.extensionGalleryService.isEnabled()) {
				const gallery = await this.extensionGalleryService.getCompatibleExtension(extension.identifier, extension.version);
				if (gallery) {
					galleryExtensions.push(gallery);
					return;
				}
			}
			const vsix = await this.extensionManagementServerService.localExtensionManagementServer!.extensionManagementService.zip(extension.local!);
			vsixs.push(vsix);
		}));

		await Promises.settled(galleryExtensions.map(gallery => this.extensionManagementServerService.remoteExtensionManagementServer!.extensionManagementService.installFromGallery(gallery)));
		await Promises.settled(vsixs.map(vsix => this.extensionManagementServerService.remoteExtensionManagementServer!.extensionManagementService.install(vsix)));
	}
}

export class InstallRemoteExtensionsInLocalAction extends AbstractInstallExtensionsInServerAction {

	constructor(
		id: string,
		@IExtensionsWorkbenchService extensionsWorkbenchService: IExtensionsWorkbenchService,
		@IQuickInputService quickInputService: IQuickInputService,
		@IProgressService progressService: IProgressService,
		@INotificationService notificationService: INotificationService,
		@IExtensionManagementServerService private readonly extensionManagementServerService: IExtensionManagementServerService,
		@IExtensionGalleryService private readonly extensionGalleryService: IExtensionGalleryService,
	) {
		super(id, extensionsWorkbenchService, quickInputService, notificationService, progressService);
	}

	get label(): string {
		return localize('select and install remote extensions', "Install Remote Extensions Locally...");
	}

	protected getQuickPickTitle(): string {
		return localize('install remote extensions', "Install Remote Extensions Locally");
	}

	protected getExtensionsToInstall(local: IExtension[]): IExtension[] {
		return local.filter(extension =>
			extension.type === ExtensionType.User && extension.server !== this.extensionManagementServerService.localExtensionManagementServer
			&& !this.extensionsWorkbenchService.installed.some(e => e.server === this.extensionManagementServerService.localExtensionManagementServer && areSameExtensions(e.identifier, extension.identifier)));
	}

	protected async installExtensions(extensions: IExtension[]): Promise<void> {
		const galleryExtensions: IGalleryExtension[] = [];
		const vsixs: URI[] = [];
		await Promises.settled(extensions.map(async extension => {
			if (this.extensionGalleryService.isEnabled()) {
				const gallery = await this.extensionGalleryService.getCompatibleExtension(extension.identifier, extension.version);
				if (gallery) {
					galleryExtensions.push(gallery);
					return;
				}
			}
			const vsix = await this.extensionManagementServerService.remoteExtensionManagementServer!.extensionManagementService.zip(extension.local!);
			vsixs.push(vsix);
		}));

		await Promises.settled(galleryExtensions.map(gallery => this.extensionManagementServerService.localExtensionManagementServer!.extensionManagementService.installFromGallery(gallery)));
		await Promises.settled(vsixs.map(vsix => this.extensionManagementServerService.localExtensionManagementServer!.extensionManagementService.install(vsix)));
	}
}

CommandsRegistry.registerCommand('workbench.extensions.action.showExtensionsForLanguage', function (accessor: ServicesAccessor, fileExtension: string) {
	const viewletService = accessor.get(IViewletService);

	return viewletService.openViewlet(VIEWLET_ID, true)
		.then(viewlet => viewlet?.getViewPaneContainer() as IExtensionsViewPaneContainer)
		.then(viewlet => {
			viewlet.search(`ext:${fileExtension.replace(/^\./, '')}`);
			viewlet.focus();
		});
});

CommandsRegistry.registerCommand('workbench.extensions.action.showExtensionsWithIds', function (accessor: ServicesAccessor, extensionIds: string[]) {
	const viewletService = accessor.get(IViewletService);

	return viewletService.openViewlet(VIEWLET_ID, true)
		.then(viewlet => viewlet?.getViewPaneContainer() as IExtensionsViewPaneContainer)
		.then(viewlet => {
			const query = extensionIds
				.map(id => `@id:${id}`)
				.join(' ');
			viewlet.search(query);
			viewlet.focus();
		});
});

export const extensionButtonProminentBackground = registerColor('extensionButton.prominentBackground', {
	dark: buttonBackground,
	light: buttonBackground,
	hc: null
}, localize('extensionButtonProminentBackground', "Button background color for actions extension that stand out (e.g. install button)."));

export const extensionButtonProminentForeground = registerColor('extensionButton.prominentForeground', {
	dark: buttonForeground,
	light: buttonForeground,
	hc: null
}, localize('extensionButtonProminentForeground', "Button foreground color for actions extension that stand out (e.g. install button)."));

export const extensionButtonProminentHoverBackground = registerColor('extensionButton.prominentHoverBackground', {
	dark: buttonHoverBackground,
	light: buttonHoverBackground,
	hc: null
}, localize('extensionButtonProminentHoverBackground', "Button background hover color for actions extension that stand out (e.g. install button)."));

registerThemingParticipant((theme: IColorTheme, collector: ICssStyleCollector) => {
	const foregroundColor = theme.getColor(foreground);
	if (foregroundColor) {
		collector.addRule(`.extension-list-item .monaco-action-bar .action-item .action-label.extension-action.built-in-status { border-color: ${foregroundColor}; }`);
		collector.addRule(`.extension-editor .monaco-action-bar .action-item .action-label.extension-action.built-in-status { border-color: ${foregroundColor}; }`);
	}

	const buttonBackgroundColor = theme.getColor(buttonBackground);
	if (buttonBackgroundColor) {
		collector.addRule(`.extension-list-item .monaco-action-bar .action-item .action-label.extension-action.label { background-color: ${buttonBackgroundColor}; }`);
		collector.addRule(`.extension-editor .monaco-action-bar .action-item .action-label.extension-action.label { background-color: ${buttonBackgroundColor}; }`);
	}

	const buttonForegroundColor = theme.getColor(buttonForeground);
	if (buttonForegroundColor) {
		collector.addRule(`.extension-list-item .monaco-action-bar .action-item .action-label.extension-action.label { color: ${buttonForegroundColor}; }`);
		collector.addRule(`.extension-editor .monaco-action-bar .action-item .action-label.extension-action.label { color: ${buttonForegroundColor}; }`);
	}

	const buttonHoverBackgroundColor = theme.getColor(buttonHoverBackground);
	if (buttonHoverBackgroundColor) {
		collector.addRule(`.extension-list-item .monaco-action-bar .action-item:hover .action-label.extension-action.label { background-color: ${buttonHoverBackgroundColor}; }`);
		collector.addRule(`.extension-editor .monaco-action-bar .action-item:hover .action-label.extension-action.label { background-color: ${buttonHoverBackgroundColor}; }`);
	}

	const extensionButtonProminentBackgroundColor = theme.getColor(extensionButtonProminentBackground);
	if (extensionButtonProminentBackground) {
		collector.addRule(`.extension-list-item .monaco-action-bar .action-item .action-label.extension-action.label.prominent { background-color: ${extensionButtonProminentBackgroundColor}; }`);
		collector.addRule(`.extension-editor .monaco-action-bar .action-item .action-label.extension-action.label.prominent { background-color: ${extensionButtonProminentBackgroundColor}; }`);
	}

	const extensionButtonProminentForegroundColor = theme.getColor(extensionButtonProminentForeground);
	if (extensionButtonProminentForeground) {
		collector.addRule(`.extension-list-item .monaco-action-bar .action-item .action-label.extension-action.label.prominent { color: ${extensionButtonProminentForegroundColor}; }`);
		collector.addRule(`.extension-editor .monaco-action-bar .action-item .action-label.extension-action.label.prominent { color: ${extensionButtonProminentForegroundColor}; }`);
	}

	const extensionButtonProminentHoverBackgroundColor = theme.getColor(extensionButtonProminentHoverBackground);
	if (extensionButtonProminentHoverBackground) {
		collector.addRule(`.extension-list-item .monaco-action-bar .action-item:hover .action-label.extension-action.label.prominent { background-color: ${extensionButtonProminentHoverBackgroundColor}; }`);
		collector.addRule(`.extension-editor .monaco-action-bar .action-item:hover .action-label.extension-action.label.prominent { background-color: ${extensionButtonProminentHoverBackgroundColor}; }`);
	}

	const contrastBorderColor = theme.getColor(contrastBorder);
	if (contrastBorderColor) {
		collector.addRule(`.extension-list-item .monaco-action-bar .action-item .action-label.extension-action:not(.disabled) { border: 1px solid ${contrastBorderColor}; }`);
		collector.addRule(`.extension-editor .monaco-action-bar .action-item .action-label.extension-action:not(.disabled) { border: 1px solid ${contrastBorderColor}; }`);
	}
});
